Presentation on "Coupling problems and partitioned-based approach for an inflatable aeroshell as innovative atmospheric entry technology"

January 11, 2023, 4:00 p.m. (CET)

Time: January 11, 2023, 4:00 p.m. (CET)
Meeting mode: hybrid
Download as iCal:

Our guest Yusuke Takahashi will give a presentation on Wednesday, January 11, 4pm on "Coupling problems and partitioned-based approach for an inflatable aeroshell as innovative atmospheric entry technology"

You can either join directly in the multimedia lab or online.

Multimedia lab: U38, 2.308
Webex: https://unistuttgart.webex.com/unistuttgart/j.php?MTID=m9c72dfce126cb8b55b2e608436376a0f

Abstract: Transportation from space to the planet’s surface, which is in the atmospheric entry, descent, and landing (EDL) phase, is an important field in space engineering. Because spacecraft generally have extremely high velocities such as over 7.8 km/s in space, the aerodynamic deceleration during the EDL process occurs various problems. Those examples are aerodynamic heating originating from strong shock waves formed by hypersonic flows, communication blackout which is the blocking of telecommunication electromagnetic waves by atmospheric-entry plasma, and aerodynamic attitude instability. Now, an innovative atmospheric entry technology, the inflatable entry vehicle, has been proposed. This technology has a large-area and lightweight aeroshell that provides efficient aerodynamic deceleration at high altitudes and reduces problems such as aerodynamic heating. However, the flexible structure of the fabric allows it to be easily deformed by aerodynamic forces in the EDL phase. While this has an impact on the surface heating and the vehicle’s attitude, it is difficult to evaluate the effect of the deformation. To clarify the detailed coupled behavior of the high-speed flows and the flexible structures, a numerical analysis model based on a partitioned approach was developed. The verification and validation of the analytical model were also performed through comparison with the results of wind tunnel experiments. The analytical model revealed the fluid-structure interaction of flexible aeroshells in subsonic and transonic flows. The results and discussion are presented in this meeting.

 
 

July 2023

June 2023

May 2023

April 2023

March 2023

February 2023

January 2023

December 2022

November 2022

October 2022

September 2022

July 2022

June 2022

May 2022

April 2022

March 2022

February 2022

January 2022

December 2021

November 2021

October 2021

September 2021

July 2021

June 2021

May 2021

April 2021

March 2021

February 2021

January 2021

December 2020

November 2020

October 2020

August 2020

July 2020

June 2020

May 2020

March 2020

February 2020

January 2020

December 2019

November 2019

October 2019

September 2019

July 2019

June 2019

May 2019

June 2019

November 2019

To the top of the page