Simulation of Local Non-Stationary Heat Exchange in Combustion Chamber of Aviation Reciprocating Engine / R.Z. Kavtaradze, A.A. Zelentsov, Z.R. Kavtaradze, L.A. Finkelberg, Yu.N. Nikitin // Vestnik MGTU. Machinostroenie. 2010. № 1. //P. 20-36.

Processes of the nonstationary transfer, accompanied by burning, in a combustion chamber of the aviation reciprocating engine are simulated using the momentum and energy conservation equations and the continuity and diffusion equations written in the Reynolds form. To close the equations, the k-e-model of turbulence, model of turbulent burning and a model of heat exchange in the near-wall layer are used. Verification of the models is performed on the basis of the engine indicator diagram. It is shown that the distribution of local thermal loads over a piston head substantially depends on a relief of its heat-receiving surface, in particular on a shape, size and location of the expulsion device and grooves under valves. Values of thermal loads acting on a piston from the high-temperature working fluid are determined which are necessary for the study of the piston heat-stress state and the engine reliability and durability as well.