Email this article 
Mathematical modelling of the working process of a hot gas pressure feed system
- Authors: Salich V.L.1
-
Affiliations:
- Research & Development Institute of Mechanical Engineering, Nizhnyaya Salda
- Issue: Vol 15, No 4 (2016)
- Pages: 133-142
- Section: AIRCRAFT AND SPACE ROCKET ENGINEERING
- URL: https://journals.ssau.ru/vestnik/article/view/3318
- DOI: https://doi.org/10.18287/2541-7533-2016-15-4-133-142
- ID: 3318
Cite item
Full Text
Abstract
The paper discusses improving the weight and size characteristics of propulsion systems with liquid thrusters due to the replacement of conventional compressed-gas systems by hot gas systems where a gas generator operating on propellants is used for hot gas production. Possible algorithms of the operation of such feed systems are discussed. A mathematical model has been created for the purpose of computational and theoretical study of operating processes in the considered feed system. The model represents system units as lumped volumes. Differential equations of weight, internal energy, and combustion gases concentration are written for every lumped volume. The differential equation of unit structure temperature is also added. The differential equations of mass and internal energy are converted into equations of pressure and temperature. The model is expressed through mass flow ratios and heat exchanges between the system units, dependences of thermo-physical properties on the temperature, combustion gas concentrations and the ratio of fuel components in the gas generator. The temperature, pressure, concentration of combustion gases in the system units and the unit structure temperature are specified as input parameters. The simulation results showed satisfactory agreement with the experimental data, which makes it possible to use the developed model for computational and theoretical studies of the hot gas pressure feed systems.
About the authors
V. L. Salich
Research & Development Institute of Mechanical Engineering, Nizhnyaya Salda
Author for correspondence.
Email: salich_vas@mail.ru
Candidate of Science (Engineering)
Leading Researcher of Advanced Design Department
References
- Arkhipov Yu.S., Kutueva E.V., Kutuev R.Kh. Ognennye kolesnitsy kosmicheskikh orbit [Fiery chariots of space orbits]. Nizhniy Tagil: Reprint Publ., 2014. 242 p.
- Salich V.L., Shmakov A.A., Vaulin S.D. Zhidkostnye raketnye dvigateli maloy tyagi [Liquid rocket thrusters]. Chelyabinsk: South Ural State University Publ., 2006. 52 p.
- Valeeva O.V., Vaulin S.D., Kovin S.G., Feofilaktov V.I. Nizkotemperaturnye tverdotoplivnye gazogeneratory: metody rascheta rabochikh protsessov, eksperimental'nye issledovaniya [Low-temperature solid-fuel gas generators: Methods of calculating working processes, experimental research]. Miass: Academician V.P. Makeyev State Rocket Centre Publ., 1997. 268 p.
- Bobrov P.N., Murkin V.A., Salich V.L., Shul'gin V.P. Eksperimental'nye issledovaniya po sozdaniyu DU s vytesnitel'noy sistemoy podachi topliva na goryachem gaze. Materialy XXXVI vserossiyskoy konferentsii «Nauka i tekhnologii». V. 3. Moscow: Russian Academy of Sciences Publ., 2016. P. 44-48. (In Russ.)
- Emtsev B.T. Tekhnicheskaya gidromekhanika: ucheb. dlya vuzov [Engineering fluid dynamics: Textbook for higher schools]. Moscow: Mashinostroenie Publ., 1987. 440 p.
- Isachenko V.P., Osipova V.A., Sukomel A.S. Teploperedacha: uchebnik dlya vuzov [Heat transfer: Textbook for higher schools]. Moscow: Energiya Publ., 1975. 488 p.
- Belyaev E.N., Chvanov V.K., Chervakov V.V. Matematicheskoe modelirovanie ra-bochego protsessa zhidkostnykh raketnykh dvigateley [Mathematical modeling of the working process in liquid rocket engines: Tutorial]. Moscow: Moscow Aviation Institute Publ., 1999. 228 p.
- Salich V.L. Matematicheskaya model' teplofizicheskikh protsessov v sisteme nadduva DU na goryachem gaze. Materialy XXXVI vserossiyskoy konferentsii «Nauka i tekhnologi». V. 3. Moscow: Russian Academy of Sciences Publ., 2016. P. 35-43. (In Russ.)
- Malkov M.P., Danilov I.B., Zel'dovich A.G., Fradkov A.B. Spravochnik po fiziko-tekhnicheskim osnovam kriogeniki [Handbook on physico-technical fundamentals of cryogenics]. M.: Energoatomizdat Publ., 1985. 432 p.
- Florea O., Smigel'skiy O. Raschety po protsessam i apparatam khimicheskoy tekhnologii [Calculations of the processes and apparatuses of chemical technology]. Moscow: Khimiya Publ., 1971. 448 p.
- Vargaftik N.B. Spravochnik po teplofizicheskim svoystvam gazov i zhidkostey [Guide to the thermo-physical properties of gases and liquids]. Moscow: Nauka Publ., 1972. 720 p.
- Kalitkin N.N. Chislennye metody [Numerical methods]. Moscow: Nauka Publ., 1978. 512 p.
Supplementary files
