Real-time active-gas imaging of small gas leaks [PDF]
Journal of Sensors and Sensor Systems, 2023 To tackle global warming, the reduction of greenhouse gas leaks is of great public interest. While state-of-the-art optical gas imaging (OGI) cameras can visualize larger gas leaks with magnitudes of liters per minute in the case of methane, a much more ...
M. Bergau +6 more
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Solution of super- and hypersonic gas dynamic problems with a model of high-temperature air [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 The study considers the solution of a number of problems of supersonic and hypersonic gas dynamics using a model that takes into account the dissociation and ionization of air.
Konstantin N. Volkov +3 more
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Investigation of applicability of Peng–Robinson and GERG-2008 equations of state of real gas for calculating properties of Freons for refrigeration machines and compressors [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021 A study of real gas state equations Peng–Robinson and GERG-2008 with respect to calculation of Freons R404A, R408A and R410A has been carried out. Four Freon parameters are calculated during the study: saturated vapor pressure at the saturation line at
M. I. Sokolov, Yu. V. Kozhukhov
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International Journal of Turbomachinery, Propulsion and Power, 2021 This paper presents a new improved approach to calculation of polytropic performance of centrifugal compressors. This rapid solution technique is based upon a constant efficiency, temperature-entropy polytropic path represented by cubic polynomials.
Matt Taher, Fred Evans
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CFD simulation of ejector: is it worth to use real gas models? [PDF]
EPJ Web of Conferences, 2018 This paper presents progress of evaluation existing ejector of previous work with different gases, included real gas. This work was done by the Ansys simulation tool.
Vu Nguyen Van, Kracik Jan
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Comparative analysis of single-stage reciprocating compressor compressing different gases [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019 Ensuring the efficient and reliable operation of reciprocating compressors is an important issue. The quality of the designed equipment is determined by the level of knowledge of the object and the perfection of methods for calculating its state.
A. A. Kotlov, A. B. Burakov
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On the Development of an Implicit Discontinuous Galerkin Solver for Turbulent Real Gas Flows
Fluids, 2023 The aim of this work is to describe an efficient implementation of cubic and multiparameter real gas models in an existing discontinuous Galerkin solver to extend its capabilities to the simulation of turbulent real gas flows.
Edoardo Mantecca +5 more
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Suitable model for the calculation of the correlation between the real and the average specific heat capacity and possibilities of its application [PDF]
Hemijska Industrija, 2013 Starting from the definition of the average specific heat capacity for chosen temperature range, the analytic dependence between the real and the mean specific heat capacities is obtained using differential and integral calculation.
Pejović Branko B. +3 more
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Real Gas Models in Coupled Algorithms Numerical Recipes and Thermophysical Relations
International Journal of Turbomachinery, Propulsion and Power, 2020 In the majority of compressible flow CFD simulations, the standard ideal gas state equation is accurate enough. However, there is a range of applications where the deviations from the ideal gas behaviour is significant enough that performance predictions
Lucian Hanimann +4 more
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Tabulation of the Riemann problem solution in Godunov method for Soave – Redlich – Kwong equation of state [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. ИнформатикаThe work is devoted to the using of the exact solutions of the Riemann problem on the decay of an arbitrary discontinuity to describe the real gases flows with the Soave – Redlich – Kwong equation of state.
Koroleva, Maria Ravilevna +1 more
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