Numerical simulation analysis of supersonic asymmetric converging-diverging nozzle with stepped curvature and curved discretization

Hariyotejo Pujowidodo, Ahmad Indra Siswantara, Budiarso, Asyari Daryus, Gun Gun Ramdlan Gunadi, Candra Damis Widiawaty

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A numerical simulation, using the Cartesian and Body Fitted Coordinate (BFC) structured mesh, has been conducted to investigate fluid dynamics inside the asymmetric supersonic Converging-Diverging (CD) nozzle. Two models of nozzle mesh generation namely stepped curvature and curved were simulated to obtain the flow parameters and turbulence properties. The turbulence model of Standard (STD) k-ϵ has been applied to solve the two planar nozzles with 3510 cells of the stepped model and 3298 independence grid cells of the curved model. The result of flow parameters such as the distribution of pressure, temperature, density, and Mach number (Ma) was theoretically verified for satisfying the compressible flow analysis. It was obtained that there was a difference between the stepped and curved mesh models, in case of flow properties, inside the divergent section of the nozzle. The existence of stepped profile has resulted in gaining the static pressure, as the consequence of friction loss, thus influencing the turbulence properties such as turbulent kinetic energy and dissipation rate, as well the occurred shock structure.

Original languageEnglish
Title of host publicationInnovative Science and Technology in Mechanical Engineering for Industry 4.0
Subtitle of host publicationProceedings of the 4th International Conference on Mechanical Engineering, ICOME 2019
EditorsVivien Djanali, Fahmi Mubarok, Bambang Pramujati, Suwarno
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419346
DOIs
Publication statusPublished - 10 Dec 2019
Event4th International Conference on Mechanical Engineering: Innovative Science and Technology in Mechanical Engineering for Industry 4.0, ICOME 2019 - Yogyakarta, Indonesia
Duration: 28 Aug 201929 Aug 2019

Publication series

NameAIP Conference Proceedings
Volume2187
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference on Mechanical Engineering: Innovative Science and Technology in Mechanical Engineering for Industry 4.0, ICOME 2019
CountryIndonesia
CityYogyakarta
Period28/08/1929/08/19

Fingerprint Dive into the research topics of 'Numerical simulation analysis of supersonic asymmetric converging-diverging nozzle with stepped curvature and curved discretization'. Together they form a unique fingerprint.

Cite this