Control of Heat Fluxes on the Surface of the Body Streamlined by Supersonic Flow with the Help of MHD Method

摘要

This report results from a contract tasking Ioffe Physico-Technical Institute of Russian Academy of Sciences as follows: The contractor shall numerically and experimentally investigate the processes accompanying pulsed magnetic impacts on a high-velocity flow of ionized gas, in particular, it's effect on drag and heat flux. The project is divided into the following 8 well defined tasks: Task1: Design and fabricate the model a flat plate with embedded electrodes. Adapt the algorithm and codes for the numerical simulation of an essentially non-stationary hypersonic flow of a viscous heat conducting plasma exposed to a pulsed magnetic field. Develop an acceptable design of the gradient heat flux sensor. Task 2. Choose the experimental flow regime and plasma parameters. Calculate the flow parameters in the test channel in a regime of an MHD generator. Task 3. Carry out measurements and calculations aimed at revealing the influence of a magnetic field on the heat flux toward the flat plate. Task 4. Analyze the experimental results, comparison with the results of calculations and make conclusions concerning an electrodeless scheme of the MHD interaction around a body of revolution. Task 5. Design and manufacture the model a body of revolution with an induction coil housed inside. Update the design of the gradient heat flux sensor: evaluation of the necessary sensitivity and placement. Task 6.- Mount the heat flux sensors and document the measurement system performance. Task 7. Search the test space of flow parameters and magnetic field strength that induce an electric current around the test object. Conduct numerical simulations of the MHD plasma flow about the test object. Task 8. Carry out measurements aimed at revealing the influence of a magnetic field on the heat flux toward the surface of a body of revolution. Analysis of the results.