Flow Field around a Blunt-nosed Body with Spike
-
Shashank Khurana
,
Kojiro Suzuki
Abstract
The zone of influence and the positive pressure field over the nose, for a blunt-nosed body, with and without spike, were measured by direct means. Flow past the body, with and without spikes, was visualized in a two-dimensional water channel, at a specific Reynolds number. It is found that, the spike reduces the radius of curvature of the approaching streamline, and the deflection of the streamline is towards the shoulder of the basic body, resulting in a narrow zone of the positive pressure hill at the nose. The spike with hemispherical nose reduces the zone of influence drastically from 1.75 to less than 1.60. The pressure hill height for hemispherical nose is found to be smaller, compared to other shapes of the spike nose studied. The hill heights for the flat faced spike with cylindrical and square stems are comparable. It is found that, the size of the vortex at the junction of the spike and basic body is the largest for the hemispherical nose.
©[2012] by Walter de Gruyter Berlin Boston
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- Flow Field around a Blunt-nosed Body with Spike
- The Flow Analysis and Performance Improvement of the Flow Return System in High Pressure Fans
- Numerical Investigation of Heat Transfer Characteristic on Scalelike Platelet Inner Duct
- Analytical Calculation of Stall-inception and Surge Points for an Axial-flow Compressor Rotor
- Fatigue Life Estimation of an Aircaft Engine Under Different Load Spectrums
- Numerical Simulation of Tangling in Jet Engine Turbines
- Statistical Turbofan Architecture Management for Use in a Supercirculation Wing Aircraft
- Calculating High Speed Centrifugal Compressor Performance from Averaged Measurements
- Preliminary Experimental Investigation on Detonation Initiation in the Ejector of a Pulse Detonation Rocket Engine
- An Application of Fuzzy Fault Tree Analysis to Uncontained Events of an Areo-Engine Rotor
Articles in the same Issue
- Masthead
- Flow Field around a Blunt-nosed Body with Spike
- The Flow Analysis and Performance Improvement of the Flow Return System in High Pressure Fans
- Numerical Investigation of Heat Transfer Characteristic on Scalelike Platelet Inner Duct
- Analytical Calculation of Stall-inception and Surge Points for an Axial-flow Compressor Rotor
- Fatigue Life Estimation of an Aircaft Engine Under Different Load Spectrums
- Numerical Simulation of Tangling in Jet Engine Turbines
- Statistical Turbofan Architecture Management for Use in a Supercirculation Wing Aircraft
- Calculating High Speed Centrifugal Compressor Performance from Averaged Measurements
- Preliminary Experimental Investigation on Detonation Initiation in the Ejector of a Pulse Detonation Rocket Engine
- An Application of Fuzzy Fault Tree Analysis to Uncontained Events of an Areo-Engine Rotor
