This article reports a parametric study on the performance of a high aspect ratio, low speed
contra-rotating fan stage. Parameters namely speed ratios of the two rotors and axial …

The present paper is aimed to understand the stall inception phenomenon and its
propagation in a low speed, contra rotating axial flow fan stage, operating with …

With the expanding electrification in all sectors of transport, it is necessary to look for new
efficient solutions for propulsion systems for use in air transport. One of the approaches can …

This paper reports on a theory for poststall transients in contra-rotating fans, which is
developed from the basic Moore–Greitzer theory. A second-order hysteresis term is …

There has been renewed interest in the contra-rotating (CR) fan configuration in aviation
and other applications where size and weight are important design factors. Contra-rotation …

Contra-rotating fan is a concept that can possibly replace the present-day conventional fans
due to its several aerodynamic advantages. It has the potential to improve the stability limit …

This paper presents a method of modeling contra-rotating turbomachinery components for
engine performance simulations. The first step is to generate the performance characteristics …

为了探索对转压气机流场特性, 在前后级转子等转速压比和效率特性试验基础上,
在一个两级对转轴流压气机试验台上进行了前后级转子不同转差下的特性实验 …

The benefits of circumferential groove casing treatment on the performance of a low-speed
contra-rotating fan are investigated. Three-dimensional, time-dependent simulations are …

In view of the flow instability problem caused by the strong shock wave and secondary flow
in the channel of the high-load counter-rotating compressor, this paper adopts the design …