Research ArticleOpen accessEvery word in the titleNumerical Study of the Temperature Separation in the Ranque-Hilsch Vortex TubeSaeid Akhesmeh, Nader Pourmahmoud, Hasan SedgiThis research has been carried out in order to provide an understanding of the physical behaviors of the flow variation of pressure and temperature in a vortex tube. A computational fluid dynamics model is used to predict the flow fields and the associated temperature separation within a Ranque-Hilsch vortex tube. The CFD model is a steady axisymmetric model (with swirl) … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2008 · 7,316 accessesView PDFCite
Research ArticleOpen accessIn the keywordsHardware in the Loop Simulator for Multi Agent Unmanned Aerial Vehicles EnvironmentKamal S. Ali, Justin L. ShumakerThis study describes a Multi-Agent Hardware In the Loop Simulator (HILS) for Unmanned Aerial Vehicles’ (UAV) autopilots. This HILS system allows multiple autopilots to fly multiple virtual airframes in the same virtual environment allowing these agents to interact as a swarm. This system makes the exploration and evaluation of Multi Agent Systems (MAS) possible at minimal cost. …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 2 · 10 May 2013 · 7,529 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMiniature-Autopilot Evaluation SystemKamal Ali, Lamarious CarterThis research describes a Hardware in the Loop Simulator (HILS) that was developed to enhance the quality of attitude data received from autopilots. The described system aided in adjusting the contribution of individual IMU sensors and thereby improved the accuracy of IMU data. The HILS system outlined in this research is a gimbaled platform equipped with four stepper motors and … …Journal of Computer Science, Vol. 4, Issue 1 · 31 Jan 2008 · 6,945 accessesView PDFCite
Research ArticleOpen accessIn the keywordsModeling and Optimization of the Vortex Tube with Computational Fluid Dynamic AnalysisK.K. Zin, A. Hansske, F. ZieglerProblem statement: This study illustrated the influence of the Length to Diameter (L/D) on the fluid flow characteristics inside the counter-flow Ranque-Hilsch vortex tube predicted by Computational Fluid Dynamic (CFD) and validated through experiment. Approach: The swirl velocity, axial velocity, radial velocity component and also secondary circulation flow (back-flow) along with the pressure within the vortex tube were simulated and … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,828 accessesView PDFCite
Research ArticleOpen accessIn the abstractBenthic Macro-Invertebrate Survey in Little Beaver Creek, Kaw Lake WatershedDejene AlemayehuThe Kaw Nation Environmental Department, as part of the water quality monitoring parameters in its non-point source pollution project conducted a benthic macro-inventebrat sampling and taxonomic classification as a stream bioassessment of Little Beaver and Bear Creeks. Little Beaver Creek is located in the tall grass prairie of Kay County, Oklahoma. It is one of the tributary creeks that enter … …American Journal of Environmental Sciences, Vol. 12, Issue 1 · 29 Feb 2016 · 7,357 accessesView PDFCite