Roache, Brody (2004) Heat transfer measurements of a re-entry capsule using fast response thermocouples. [USQ Project]
Predicting the heat transfer of a re-entry capsule as it enters the atmosphere is critical to
the capsule design. At hypersonic speeds, air temperature in front of a capsule entering
the Mars atmosphere is heated to about 1600C by friction between the capsule and the
gas in the atmosphere. An accurate heat transfer prediction is essential to design the
heat shield as light as possible so that the scientific payload can be increased.
This project aims to investigate the application of fast response thermocouples to the
measurement of heat transfer in the hypersonic flow produced by the gun tunnel, and
obtaining representative data on selected re-entry capsule geometries for comparison
with theory and other experiments.
E-Type thermocouples are used to calculate temperature change by measuring the
emf produced by the Seebeck effect. Heat transfer is calculated by assuming one-
dimensional heat conduction.
This project demonstrates that E-type thermocouples can be designed and constructed
to effectively measure temperature with a response fast enough to effectively calculate
heat flux during a 20 millisecond gun tunnel run.
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|Item Type:||USQ Project|
|Item Status:||Live Archive|
|Additional Information:||Additional project files (ProEngineer models and MATLAB scripts) available on CD-ROM held in USQ library.|
|Faculty / Department / School:||Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering|
|Date Deposited:||11 Oct 2007 00:13|
|Last Modified:||02 Jul 2013 22:30|
|Uncontrolled Keywords:||re-entry capsule design, fast response thermocouples, heat transfer measurements, E-type thermocouples|
|Fields of Research :||09 Engineering > 0901 Aerospace Engineering > 090108 Satellite, Space Vehicle and Missile Design and Testing
09 Engineering > 0915 Interdisciplinary Engineering > 091505 Heat and Mass Transfer Operations
09 Engineering > 0901 Aerospace Engineering > 090102 Aerospace Materials
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