Results 131 to 140 of about 41,220 (167)

Tip Gap Effects on the Unsteady Behavior of a Tip Leakage Vortex

AIAA Journal, 2007
The effects of tip gap on the unsteady behavior of a tip leakage vortex downstream of an idealized axial compressor rotor blade have been investigated in a linear cascade wind tunnel, extending the study of Ma and Devenport. The wind tunnel features a moving end wall to simulate the relative motion between the rotor and casing, and vortex generator ...
Ruolong Ma, William J. Devenport
openaire   +1 more source

Tip Leakage and Backflow Vortex Cavitation

2007
In addition to blade surface cavitation, tip leakage and backflow cavitations occur in real inducers. Although most of cavitation instabilities can be explained by considering only blade surface cavitation, these types of cavitation might play an important role especially for the suppression of instabilities.
openaire   +1 more source

Tip Leakage Flow Instability in a Centrifugal Compressor

Journal of Engineering for Gas Turbines and Power, 2019
Abstract In this paper, an unsteady tip leakage flow phenomenon is identified and investigated in a centrifugal compressor with a vaneless diffuser at near-stall conditions. This phenomenon is associated with the inception of a rotating instability in the compressor.
Teng Cao, Tadashi Kanzaka, Liping Xu, Tobias Brandvik   +3 more
openaire   +1 more source

Reduction of tip-leakage noise by using over-tip liners

28th AIAA/CEAS Aeroacoustics 2022 Conference, 2022
Sergi Palleja-Cabre, Ivan Saraceno, Suresh Palani, Chaitanya C. Paruchuri   +3 more
openaire   +1 more source

Over-Tip Leakage Loss for a Gutter-Type Turbine Blade Tip

Transactions of the Korean Society of Mechanical Engineers - B, 2021
Seon Woo Bong, Sang Woo Lee
openaire   +1 more source

Optimization of Rotor Tip Cavity Shapes for Mitigating Aerodynamic Tip Leakage Losses

Journal of Propulsion and Power
Rotor blade tip leakage loss influences turbine stage efficiency. A parametric optimization method based on five design variables combined with Non-Linear Programming by Quadratic Lagrangian to optimize the turbine efficiency estimated from computational fluid dynamics analysis has been used to obtain estimates of the optimal cavity depth and split ...
Yingjie Chen, Le Cai, Yiyi Li, Songtao Wang, Murali Damodaran, Boo Cheong Khoo   +5 more
openaire   +1 more source

Vortex Lattice Method Investigation of Tip-Leakage Flow

Journal of Turbomachinery
Abstract The use of a vortex lattice method (VLM) is investigated on a tip-leakage flow single-blade configuration (NACA 0012) for a wide range of tip gaps. The aim is to estimate the circulation of the tip-leakage vortex (TLV) detaching from the blade.
Christophe Montsarrat, Jérôme Boudet
openaire   +1 more source

Tip Leakage Flow on the Transonic Compressor Rotor

Transactions of the Korean Society of Mechanical Engineers B, 2003
It is known that tip clearance flows reduce the pressure rise, flow range and efficiency of the turbomachinery. So, the clear understanding about flow fields in the tip region is needed to efficiently design the turbomachinery. The Navier-Stokes code with the proper treatment of the boundary conditions has been developed to analyze the three ...
openaire   +1 more source

Cantilevered stator vane tip leakage studies

21st Joint Propulsion Conference, 1985
N. ADAMS, H. HEPWORTH
openaire   +1 more source

Tip leakage effect on wells turbine

2015
P Halder, A Samad
openaire   +1 more source