533.6.011.5 Heat transfer modeling on the surface of a sphere in a gas flow

Kotenev V. P. (Bauman Moscow State Technical University), Sysenko V. A.


doi: 10.18698/2309-3684-2023-2-9099

The simple analytical formula for calculation of laminar specific heat flow (divided by corresponding value at the critical point) brought to sphere surface streamlined by supersonic gas flow are received in this work. The analysis of the results shows that the use of the presented formula gives the values of the specific heat flow with greater accuracy than the known approximate formulas. The comparing of the relative heat flow with the accurate computational results of solving the Navier-Stokes equations also confirm the effectiveness of the presented method. It is proposed to formulate a special rule of local spheres for a quick evaluation of the specific heat flow on the surfaces of other blunted bodies with different generators in the future.

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