Aircraft Cooling System Design
Cooling Design, Acoustic Testing, Prototyping
Design & Testing, CAD, Parts Procurement
Design new cowlings and cooling paths
Construct and test full size mock up of the cooling system
Modify wind tunnel model and conduct wind tunnel measurements
CFD of the UAV and cooling passages
Write computer software to model flight parameters of the vehicle
The top right image shows the pressure coefficients on the original aircraft based on computational fluid dynamics (CFD) calculations, without propellers. The resulting information was used to select locations for the various cooling inlets and outlets. Then the intercoolers and radiators were tested with realistic flows, temperatures and pressures in a laboratory environment. This bench testing resulted in minor modifications which resulted in optimal performance of the system.
A scale model of the modified aircraft was fitted with prototype scoops, ducts, radiator and intercooler models and was tested in the wind tunnel with motorized propellers. The aircraft was then underwent extensive testing and later was placed in service with the U.S. military.