M. E. Topchiyan, V. I. Pinakov, V. N. Rychkov, A. A. Meshcheryakov, “Endurance of nozzle throats for superhigh-pressure aerodynamic facilities and calculations of thermal strains and stresses for a sapphire nozzle”, Prikl. Mekh. Tekh. Fiz., 2012, Volume 53, Issue 1,Pages <nobr>147

This article is cited in 1 paper

Endurance of nozzle throats for superhigh-pressure aerodynamic facilities and calculations of thermal strains and stresses for a sapphire nozzle

M. E. Topchiyan^ab, V. I. Pinakov^c, V. N. Rychkov^ab, A. A. Meshcheryakov^c

^a Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
^b Novosibirsk State University, Novosibirsk, 630090, Russia
^c Design and Technology Division of Lavrentyev Institute of Hydrodynamics of the Siberian Branch of the RAS

Abstract: Results of an experimental study of the action of a nitrogen-air flow on nozzles made of various materials and sapphire at pressures in the settling chamber up to 1 GPa are presented. Formulas necessary for estimating thermal stresses in materials similar to sapphire in their properties are derived.

Keywords: heat flux power, nozzle throat, distribution of thermal strains, stresses in the nozzle body.

UDC: 532.57; 533.6/7; 535.8; 629.7/.016

Received: 24.06.2010
Accepted: 13.05.2011