Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Jae-Su Kwak"'
Publikováno v:
Aerospace, Vol 10, Iss 2, p 143 (2023)
In this study, a comparison of aerodynamic loss of gas turbine vane with various trailing edge configurations was experimentally performed. For the trailing edge, three cooling schemes (the cutback slot, the central injection slot, and the pressure s
Externí odkaz:
https://doaj.org/article/180891c231ea407e96421024ddfd065a
Publikováno v:
The KSFM Journal of Fluid Machinery. 25:5-10
Publikováno v:
Energies, Vol 14, Iss 21, p 7227 (2021)
Large eddy simulations on film cooling hole array on a flat plate was carried out to investigate upstream turbulence effect. Circular cylinders were configured to create a turbulent boundary layer and its diameter has been adjusted to generate 13% up
Externí odkaz:
https://doaj.org/article/142ef399ad4d488782907eef9f059ae0
Publikováno v:
Energies, Vol 14, Iss 23, p 7968 (2021)
This study experimentally investigated the effects of cascade inlet velocity on the distribution and the level of the heat transfer coefficient on a gas turbine blade tip. The tests were conducted in a transient turbine test facility at Korea Aerospa
Externí odkaz:
https://doaj.org/article/e0731d7e8d9f49ceb0877037a427dcd3
Publikováno v:
Energies, Vol 14, Iss 12, p 3573 (2021)
In this study, the effect of mainstream velocity on the optimization of a fan-shaped hole on a flat plate was experimentally investigated. The experiment was conducted by changing the forward expansion angle (βfwd), lateral expansion angle (βlat),
Externí odkaz:
https://doaj.org/article/8576c36aa3954ed39ee1e6de4b4fa676
Publikováno v:
Journal of Mechanical Science and Technology. 36:2127-2137
Publikováno v:
Energies, Vol 14, Iss 1, p 186 (2021)
An experimental study was performed to investigate the effects of the arrangement of fan-shaped film cooling holes and density ratio (DR) on heat transfer coefficient augmentation. Both single- and multi-row fan-shaped film cooling holes were conside
Externí odkaz:
https://doaj.org/article/758914a677a2437cba23e1056574ddef
Publikováno v:
The KSFM Journal of Fluid Machinery. 24:5-14
Publikováno v:
The KSFM Journal of Fluid Machinery. 24:28-33
Autor:
Tong Seop Kim, Woo Jun Kim, Il Young Jung, Soo In Lee, Young Jun Kang, Jae Su Kwak, Dong Hyun Kim
Publikováno v:
Journal of Mechanical Science and Technology. 35:1539-1547
In the gas turbine, gaps inevitably exist between the stationary and rotating parts. To improve the performance of gas turbines, tip leakage flow through the gaps must be minimized. The labyrinth seal increases the flow resistance by placing a number