Latest Space News
Thu, 21 Sep 2017 08:38:00 +0100
For the first time in its 19-year history, SMi Group’s Global MilSatCom Conference & Exhibition will be featuring South Korea in its speaker line-up for this year’s event. With recent threats surging within the region, South Korea has instilled urgency in the race to perfect milsatcom systems to ensure overall robust defence capability. Commander of Defence Communication Command, Brigadier General Nag Jung Choi, will be presenting a keynote address on Day 3 of the conference...
Wed, 20 Sep 2017 16:45:00 +0100
In the first act of lunar exploration, Neil Armstrong and Buzz Aldrin were major characters. In setting its sights on the Moon, ESA hopes to bring many more actors to this off-world stage. By testing the market for transport services to the Moon, ESA aims to push the limits of technology and create new models of space business. Touching down on the Moon was a monumental moment in human history. Eight short years and enormous resources took humankind to the lunar surface, initially for le...
Wed, 20 Sep 2017 12:00:00 +0100
Astronomers have used ALMA to capture a strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae. These observations will help astronomers to better understand how stars evolve during the later stages of their life-cycles. In the faint southern constellation of Antlia (The Air Pump) the careful observer with binoculars will spot a very red star, which varies slightly in brightness from week to week. This very unusual star is called U Antliae and...
Wed, 20 Sep 2017 11:03:00 +0100
SES, EchoStar Corp., and Airbus Defence and Space announced today that the new EchoStar 105/SES-11 spacecraft, built by Airbus, has been shipped from the Airbus facilities in Toulouse, France, to Cape Canaveral, Florida, for its forthcoming launch by SpaceX in October. The first satellite that EchoStar has constructed with manufacturer Airbus, EchoStar 105/SES-11 will be launched by SpaceX on a flight-proven Falcon 9 rocket from Launch Complex 39A at Kennedy Space Center, Florida. EchoStar 10...
Tue, 19 Sep 2017 19:30:00 +0100
Today Lockheed Martin (NYSE: LMT) debuted a new family of satellite buses that form the core of nearly every space mission. From nanosats to high-powered satellites, the versatile lineup incorporates dozens of major enhancements and hundreds of common components that speed production and reduce cost. The company announced the lineup at the Air Force Association Air, Space & Cyber Conference. "We've invested $300 million in revamping our satellite solutions from top to bottom, applying what we...
Tue, 19 Sep 2017 15:54:00 +0100
FLYHT Aerospace Solutions Ltd. (TSX VENTURE: FLY) (OTCQX: FLYLF) (the "Company" or "FLYHT") is pleased to announce a flight trial with Inmarsat, and would like to bring attention to an Inmarsat press release titled Inmarsat to demonstrate advanced SwiftBroadband-Safety capabilities in flight trial with FLYHT on September 19, 2017. This trial will demonstrate the use of FLYHT's Automated Flight Information Reporting System (AFIRS(tm)) to send data to the UpTime(tm) Cloud management platform via I...
Tue, 19 Sep 2017 14:53:00 +0100
With the ''Space Strategy for Europe'' from the European Commission and the new ESA roadmap on the table, the European space stakeholders will have the great opportunity to debate and influence, at the highest level, the medium and long term development of European space programmes and of the spread of space services in many economic and societal activities as well as in a wide range of public fields, including security and defence. Download Conference Agenda | Register to a...
Tue, 19 Sep 2017 14:00:00 +0100
Kratos Defense & Security Solutions, Inc. (NASDAQ:KTOS), a leading National Security Solutions provider, announced today that it has recently received approximately $8.2 million in orders or specialized products in support of satellite global positioning system protection and communication systems. Work on these recent orders will be performed in secure Kratos manufacturing facilities. Due to customer related, competitive and other considerations, no additional information will be provided rel...
Tue, 19 Sep 2017 11:51:00 +0100
The Sun's recent activity has caught the interest of scientists and space weather forecasters worldwide, highlighting the need to keep a watchful eye on our star and its awesome power. On 6 and 10 September, our Sun produced a pair of solar flares, the strongest observed in over 10 years. They were accompanied by huge eruptions of billions of tonnes of matter into space. While many such eruptions fall back onto the hot surface, these two did not and became 'coronal mass ejections' (CMEs) -...
Tue, 19 Sep 2017 08:19:00 +0100
NASA's Hubble Space Telescope has observed a planet outside our solar system that looks as black as fresh asphalt because it eats light rather than reflecting it back into space. This light-eating prowess is due to the planet's unique capability to trap at least 94 percent of the visible starlight falling into its atmosphere. The oddball exoplanet, called WASP-12b, is one of a class of so-called "hot Jupiters," gigantic, gaseous planets that orbit very close to their host ...
Fri, 15 Sep 2017 18:13:00 +0100
Raytheon Company (NYSE: RTN) will continue its support for NOAA's Advanced Weather Interactive Processing System program that ingests and analyzes weather data, creating useful visualizations for forecasters and distributing time-sensitive weather statements such as watches and warnings across the United States. Used by more than 140 National Weather Service field offices, the AWIPS program informs decisions that save lives and protect property during natural disasters. Under the $269 mill...
Fri, 15 Sep 2017 15:00:00 +0100
The international Cassini mission has concluded its remarkable exploration of the Saturnian system in spectacular style, by plunging into the gas planet's atmosphere. Confirmation of the end of mission arrived at NASA's Jet Propulsion Laboratory at 11:55 GMT/13:55 CEST with the loss of the spacecraft's signal having occurred 83 minutes earlier at Saturn, some 1.4 billion km from Earth. With the rocket propellant for manoeuvering the spacecraft fully expended as planned touring Saturn and i...
Fri, 15 Sep 2017 14:17:00 +0100
Four of the latest set of Galileo navigation satellites will be launched on Ariane 6 rockets - ESA's first contract to use Europe's new vehicle. The launches are scheduled between the end of 2020 and mid-2021, using two Ariane 62 rockets - the configuration of Europe's next-generation launch vehicle that is best suited to haul the two 750 kg navigation satellites into their orbits at 23 222 km altitude. Under development, Ariane 6 is Europe's newest launcher, designed to extend guaranteed ...
Fri, 15 Sep 2017 14:00:00 +0100
The Space Alliance, formed by Thales Alenia Space (Thales 67%, Leonardo 33%) and Telespazio (Leonardo 67%, Thales 33%), today signed a partnership with the US-based company Spaceflight Industries which includes the following elements: A minority investment in Spaceflight Industries, which through its BlackSky business, has developed a geospatial platform and plans to build and operate a constellation of 60 small high-resolution observation satellites featuring very short revisit times; ...
Tue, 12 Sep 2017 16:33:00 +0100
Lockheed Martin (LM) unveiled a new small unmanned aircraft system (UAS) that has been designed and developed in the UK at the Defence and Security Equipment International (DSEI). OUTRIDER is a lightweight, canister launched UAS that has been designed by engineers at Lockheed Martin UK's Havant facility in partnership with Wirth Research, an engineering company with specialisation in aerodynamics and composite materials. At only four inches wide and weighing only 1.7 kilograms, it is designed...
Mon, 11 Sep 2017 13:00:00 +0100
Orbital ATK, a global leader in aerospace and defense technologies, today announced significant progress on the industry's first commercial in-space satellite servicing system. The Mission Extension Vehicle-1 (MEV-1) spacecraft successfully completed its critical design review earlier this year and is now in production with about 75% of the platform and payload components already delivered to the company's Satellite Manufacturing Facility in Virginia. The spacecraft will begin system-level testi...
Mon, 11 Sep 2017 10:07:00 +0100
Boeing will design and build seven super-powered medium earth orbit (MEO) satellites for SES, delivering efficient high-performance data communications services to users around the world. The O3b mPOWER satellites will include Boeing's most-advanced digital payload technology and will be built using electronics from the flight-proven 702 satellite platform customized to support the unique MEO environment. "With this new technology and design, Boeing is able to build satellites faster and m...
Wed, 6 Sep 2017 16:31:00 +0100
EchoStar Corporation and Lockheed Martin announced today that the EchoStar III satellite has been successfully recovered following an anomaly that occurred in late July and retired per the FCC regulations. "After the initial loss of contact, with a joint effort by EchoStar and Lockheed Martin, a command and control link was reestablished and deorbit maneuvers performed" said Derek de Bastos, chief technology officer for EchoStar Satellite Services L.L.C. "EchoStar III is now safely in a grave...
Wed, 6 Sep 2017 15:24:00 +0100
Orbital ATK, a global leader in aerospace and defense technologies, recently completed an important qualification test of the avionics system for the solid rocket boosters the company has developed and is now manufacturing for NASA's Space Launch System (SLS). Completion of this milestone is an important step toward preparing the SLS and Orion spacecraft for their first flight in 2019. Two Orbital ATK-developed five-segment rocket boosters will be used on each SLS launch to help provide initial ...
Tue, 5 Sep 2017 14:07:00 +0100
Launch is the most strenuous part of a satellite's life. To survive the extreme sound wave pressure and pounding vibrations generated by more than 700,000 lbs. of thundering rocket thrust, spacecraft need a solid, reliable design if they hope to arrive operational on orbit. On July 13, Lockheed Martin (LMT)'s second, fully-assembled GPS III space vehicle (SV) completed a realistic simulation of its future launch experience and passed this critical acoustic environmental test with flying color...
More space news...
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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
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    Contact information
     Email:<withheld>
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    Candidate Profile
     Date Submitted:15-11-2012
     Last Modified:15-11-2012 (04:53)
    Job information
     Current job:Post-doc
     Employment Term:Either
     Job location:Anywhere
     Date available:immediately
     Industry:Launch Systems
     KeywordsPhD on Heat Transfer and Aerodynamics in Gas/Steam Turbine. Expertise on wind tunnel experiment and CFD analysis.
    CV

    Objective

    An engineering/research position in Aerodynamics/ Heat Transfer/ CFD/ Mechanical Design/ Thermal System

    Summary

    More than 4 years of experience in heat transfer and aerodynamic experiment in the transonic cascade wind tunnel. More than 3 years of experience in numerical simulation on the flow in turbomachines with commercial codes. Proficient on thermodynamic and aerodynamic experimental equipment and instrumentation. Experienced in CFD analysis of the internal flow. Experienced in mechanical design with CAD tools. Self-motivated researcher with excellent analytical and communication skills. Can work independently as well as a team player.

     

    Software skills:

    CFD software (ANSYS-Fluent, ANSYS-CFX, Numeca); mechanical design code (SolidWorks); data acquisition code (Labview); data processing codes (MATLAB, Mathematics, C++).

     

    Experiment instrumentation skills:

    Infrared camera on the surface heat transfer measurement; thin film platinum gages on the surface heat transfer measurement; hot-wire probe on turbulence intensity measurement; five hole pressure probe on cascade secondary flow determination.

    Research Experience

    Graduate Research Assistant: Transonic Wind Tunnel Lab at Virginia Tech (Blacksburg, VA)         

    May 2008 – Aug 2012

    Advisor: Dr. Wing Ng& Dr. Srinath Ekkad

    −        Experimental and numerical researchon heat transfer in turbine blade tip gap region, Jan 2011 – present. (sponsored by Solar Turbines Incorporated)

    Actions

     

    §  Mentor undergraduate student using SolidWorks (CAD software) to fabricate squealer tip blade 3D geometry, and to conduct the mechanical safety inspection;

    §  Guide Master degree candidate using infrared (IR) camera to record blade tip heat transfer data, and to reduce the data;

    §  Instrument Thin Film Platinum gages to measure near tip region heat transfer data. 

    §  Perform conjugate heat transfer simulation with CFD codes to analysis a thermal protection scheme in the turbine blade tip gap region. (ANSYS-Fluent was employed)

    Outputs

    §  The heat transfer characteristics on the turbine blade tip and the near tip region were mapped with the IR measurement data. The physics of the tip gap flow, and its effect on heat transfer were discussed. Different tip gap dimensions were compared at multiple main flow Mach numbers, and suggestions were proposed to protect the turbine blade tip from thermal damage.

    §  The sponsor (Solar Turbine Inc.) was satisfied with the first stage progress report, and decided to continuously support further research on tip gap flow with our lab.

    §  The results were summarized in the form of a conference paper, and were submitted to the international conference of TURBOEXPO2013.

     

    −        Experimental and CFD investigation on film-cooling performance on turbine blade and nozzle guide vane, Jan 2009 – Dec 2010. (sponsored by Solar Turbines Incorporated)

    Actions

     

    §  Design and set up film cooling test system in gas turbine linear cascade rig; conduct the heat transfer measurement; Processed the data reduction. (Labview codes were written for the DAQ process; Matlab codes were written for data reduction)

    §  Performed CFD study to investigate the detail physics on the shock/film cooling interaction. (ANSYS-CFX was employed)

    §  Performed Hot-wire probe measurement to determine the freestream turbulence intensity in the linear cascade test section.

    Outputs

    §  The heat transfer coefficient and film cooling effectiveness of a fan-shaped hole injected gas turbine blade was recorded for the first time under a unique flow condition. A novel phenomenon of shock/film cooling interaction was observed in the experiment, and the physics were explored in the numerical study. The suggestions were proposed to optimize the film cooling performance on a gas turbine blade.

    §  The sponsor (Solar Turbine Inc.) was satisfied with the final report, and assigned new research projects to our lab.

    §  A part of the research was summarized as a journal paper, which was accepted by the ASME Journal of Turbomachinery. Two other journal papers were submitted to the AIAA Journal of Propulsion. The experimental results were presented at the conference of TURBOEXPO in Jun 2011, and AIAA conference in Jan 2012.

     

    −        Determination of secondary flow aerodynamic loss in linear cascade of a high turning blade with divergent endwall , Sep 2008 – May 2009. (sponsored by Siemens)

    Actions

     

    §  Designed a five-hole pressure probe for supersonic measurement. (Flow strength estimation/safety check was done both manually and using SolidWorks for special test conditions)

    §  Conducted the five-hole pressure probe measurement and data reduction for the total pressure loss determination. (3D interpolation method was coded in Matlab to reduce the pressure data based on the calibration data)

    §  Designed step motor driving traverse mechanism for the probe moving in the test section to perform multiple location data acquisition.

    Outputs

    §  The pressure loss caused by the secondary flow at the exit of a gas turbine blade cascade was determined into a 2-D contour map. The result was used to optimize the geometry of the endwall contour in a gas turbine blade cascade.

    §   The sponsor (Siemens) was satisfied with the progress report, and decided to continuously support further research.

    §  The results were presented at the conference of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting.

     

     

    Graduate Research Assistant: Solar Energy Lab in Chinese Academy of Science (Beijing, China)

    Apr 2006 – Apr 2007

    Advisor: Dr. Zhifeng Wang                                                                 

    −        Experimental and numerical investigations of wind effect in the heliostats field of a solar tower plant (supported by Natural Science Foundation of China)

    Actions

     

    §  Performed CFD investigation on the wind flow in a heliostats field. (Phoenix code was employed in CFD study)

    §  Assist the wind tunnel experiment to measure the pressure distribution on the heliostat surface.

    Outputs

    §  Literature research of the wind effect on the heliostats was finished. The preliminary CFD study was carried out.

    §  Wind tunnel experiment was done. The pressure distribution on the heliostats front and back surface was recorded at different attacking angles and different wind speeds.

    §  The principal advisor/manager was convinced to cancel the further research project of the wind effect on heliostats.

     

     

    Graduate Research Assistant: School of Jet Propulsion in Beijing University of Aeronautics and Astronautics (Beijing, China)                                                                                                 

    Jun 2003 – Apr 2006

    Advisor: Dr. Xingmin Gui                                                                 

    −        Designed and conducted CFD simulation of mini size rotary pump for artificial heart or left ventricular assist device, Aug 2003 - Apr 2006. (collaborated with Fuwai Hospital)

    Actions

     

    §  Performed CFD inspection on the mini size rotary pump for artificial heart or left ventricular assist device; designed and improved the rotor blade and the stator vane profiles; developed a 2-D through flow code as a tool for the blade profile design. (The commercial CFD codes, Numeca, was employed)

    §  Invented the outer bearing rotary pump for low hemolysis artificial heart. (The bearing was designed at the outside of the rotor for better powering, improved cooling and lubricating conditions, and eliminating tip gap flow)

    Outputs

    §  The original design of a blood pump for the artificial heart was improved based on the result of the numerical investigation.

    §  A patent was awarded for the novel design of the blood pump to minimize the hemolysis, manufacture cost, and maintenance complication.

    §  The progress report in the form of a proposal convinced the National Natural Science Foundation of China to support further research.

    §  The research was published as a technical paper in the journal of Artificial Organs in 2007.

     

    Teaching Experience

    Instructor: Course of Engineering Design and Economics, at Virginia Tech (Blacksburg, VA)        

    Aug 2011 – Dec 2011

    −        Lecture a class of 30 students (sophomore level)

    −        Topics include product design&engineering economics

    Education

    Virginia Polytechnic Institute and State University (Blacksburg, Virginia)

    Ph.D. Candidate in Mechanical Engineering      
    Total GPA: 3.81/4.0

    Dissertation: Fan-Shaped Hole Film Cooling on Turbine Blade and Vane in a Transonic Cascade with High Freestream Turbulence

     

     Aug 2012

     

    Beijing University of Aeronautics and Astronautics(Beijing, China)                        

    M.S. in Aerospace Propulsion Theory and Engineering 

    Thesis: Study and design on a low hemolysis axial blood pump

                                 

    Apr 2006

     

    Beijing University of Aeronautics and Astronautics(Beijing, China)                                     

    B.S. in Thermal Energy and Power Engineering

    Jun 2003

    Publications

    1.     S. Xue, W. Ng, H.K. Moon and L. Zhang. “Fan-Shaped Hole Film Cooling on Turbine Blade in a Transonic Cascade with High Freestream Turbulence,” 50th AIAA Aerospace Sciences Meeting, Nashville Tennessee, Jan 2012, AIAA-2012-0368.

     

    2.     S. Xue, A. Newman, W. Ng, H.K. Moon and L. Zhang. “Heat Transfer Performance of a Showerhead and Shaped Hole Film Cooled Vane at Transonic Conditions,” accepted by ASME Journal of Turbomachinery. (Presented asGT2011-45142 at the Turbo Expo 2011: Power for Land, Sea, and Ai)

     

    3.     S. Abraham, K. Panchal, S. Xue, S. V. Ekkad, W. Ng, B. J. Brown, A. Malandra. “Experimental And Numerical Investigations of A Transonic, High Turning Turbine Cascade with A Divergent Endwall,” Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels and Minichannels, FEDSM2010-ICNMM2010.

     

    4.     Y. Zhang, S. Xue, X. Gui, H. Sun, H. Zhang, X. Zhu, and S. Hu. “A Novel Integrated Rotor of Axial Blood Flow Pump Designed With Computational Fluid Dynamics,” Artificial Organs, 2007, Vol. 31, pp. 580-585.

     

    5.     S. Xue, W. Ng, S. V. Ekkad, “Shock effect on fan-shaped film cooled gas turbine blade suction side: CFD and comparison with experiment”. (in preparation for a journal submission)

     

    6.     K. Anto, S. Xue, W.F. Ng, L.J. Zhang, H.K. Moon, “Effects of Tip Clearance Gap and Exit Mach Number on Turbine Blade Tip and Near-Tip Heat Transfer”. (submitted to the ASME Turbo Expo 2013)

     

    7.     Chinese Patent: CN1958085 2007-05-09

    Title: Outer bearing type artificial heart blood pump

    Inventor: Song Xue, Yan Zhang, Xingmin Gui et al.

    Appl. No.: 200610002894.3

    Filed: Feb 10, 2006

    Field of Search: A61M1/10(2006.01)I

    Major Courses

     

    −        Fluid Dynamics

    −        Advanced Instrumentation

    −        Turbomachinery

    −        Modeling MEMS & NEMS

    −        Computational Fluid Dynamics

    −        Math of Mechanic Engineering Analysis

    −        Convective Heat& Mass Transfer

    −        Heat Conduction



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