We propose an approach for the design of the subsonic part of plane and axisymmetric\nLaval nozzles for real gases. The proposed approach is based on the hodograph method and allows\none to solve the inverse design problem directly. Real gas effects are taken into consideration using\nthe chemical equilibrium model. We present nozzle contours computed with the proposed method\nfor a stoichiometric methane-air mixture. Results confirm that real gas effects have a strong influence\non the nozzle shape. The described method can be used in the design of nozzles for rocket engines\nand for high-enthalpy wind tunnels.
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