TY - GEN
T1 - Numerical simulation analysis of supersonic asymmetric converging-diverging nozzle with stepped curvature and curved discretization
AU - Pujowidodo, Hariyotejo
AU - Siswantara, Ahmad Indra
AU - Budiarso,
AU - Daryus, Asyari
AU - Gunadi, Gun Gun Ramdlan
AU - Widiawaty, Candra Damis
N1 - Publisher Copyright:
© 2019 Author(s).
PY - 2019/12/10
Y1 - 2019/12/10
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85076733406&partnerID=8YFLogxK
U2 - 10.1063/1.5138265
DO - 10.1063/1.5138265
M3 - Conference contribution
AN - SCOPUS:85076733406
T3 - AIP Conference Proceedings
BT - Innovative Science and Technology in Mechanical Engineering for Industry 4.0
A2 - Djanali, Vivien
A2 - Mubarok, Fahmi
A2 - Pramujati, Bambang
A2 - Suwarno, null
PB - American Institute of Physics Inc.
T2 - 4th International Conference on Mechanical Engineering: Innovative Science and Technology in Mechanical Engineering for Industry 4.0, ICOME 2019
Y2 - 28 August 2019 through 29 August 2019
ER -