Now showing items 1-12 of 12

    • CFD-CRN Study of NOx formation in a high-pressure combustor fired with lean premixed CH4 / H2 - air mixtures 

      Vashishtha, Ashish; Yousefian, Sajjad; Goldin, Graham; Frojd, Karin; Jella, Sandeep; Bourque, Gilles; Monaghan, Rory F.D. (The American Society of Mechanical Engineers, 2021-01)
      The main motivation of this study is to investigate detailed NOx and CO formation in high-pressure dump combustor fired with lean premixed methane-air mixture using CFD-CRN hybrid approach. Further, this study is extended ...
    • Drag control by hydrogen injection in shocked stagnation zone of blunt nose 

      Vashishtha, Ashish; Callaghan, Dean; Nolan, Cathal (IOP Publishing, 2021)
      The main motivation of the current study is to propose a high-pressure hydrogen injection as an hybrid active flow control technique in order to manipulate the flow-field in front of a blunt nose during hypersonic flight. ...
    • Flow-field and performance study of coaxial supersonic nozzles operating in hypersonic environment 

      Samara, Mohammad Saeed; Vashishtha, Ashish; Watanabe, Yasumasa; Suzuki, Kojiro (Praise Worthy Prize, 2020)
      The integration of multiple propulsion systems in a coaxial configuration is one of the challenges to realize hypersonic passenger transportation. This study is an attempt to understand the performance of two co-axial jets ...
    • The impact of thermal degradation on properties of electrical machine winding insulation material 

      Sumislawska, Malgorzata; Gyftakis, Konstantinos N; Kavanagh, Darren F.; McCulloch, Malcolm D.; Burnham, Keith J.; Howey, David A. (IEEE, 2016)
      Interturn stator short circuits can develop quickly leading to serious damage of an electric machine. However, degradation mechanisms of winding insulation material are not yet fully understood. Therefore, the main ...
    • Microfluidics in haemostasis: A review 

      Jigar Panchal, Heta; Kent, Nigel J.; Knox, Andrew J.S.; Harris, Leanne F. (MDPI, 2020)
      Haemostatic disorders are both complex and costly in relation to both their treatment and subsequent management. As leading causes of mortality worldwide, there is an ever-increasing drive to improve the diagnosis and ...
    • Novel mechanism of instability control using tapered spike in hypersonic flow 

      Vashishtha, Ashish; Khurana, Shashank (American Institute of Aeronautics and Astronautics, 2021-08-02)
      A forward facing spiked blunt nose in high-speed flows is associated with pulsating flow behavior of varying amplitudes depending on spike-nose and length, the forebody geometry and flow conditions. A tapered spike has ...
    • Numerical investigation of detonation propagation through small orifice holes 

      Vashishtha, Ashish; Callaghan, Dean; Nolan, Cathal; Deiterding, Ralf (Sciendo, 2021)
      Seeking to better understand the physical phenomena underlying detonation wave propagation through small holes (especially the phenomenon of detonation re-initiation or its failure), we investigated the propagation of a ...
    • On unsteady flow analysis of a round spike blunt nose afterbody in mach 6 flow 

      Vashishtha, Ashish; Khurana, Shashank (IOP Publishing Ltd, 2021)
      An aerospike, in front of a blunt body, has largely been deemed as a key passive control device for effectively reducing the wave drag and aerodynamic heating associated with high-speed flows. In addition, it has been ...
    • Pulsating flow investigation for spiked blunt-nose body in hypersonic flow and its control 

      Vashishtha, Ashish; Khurana, Shashank (American Institute of Aeronautics and Astronautics, 2021-01)
      An aerospike, as a technique for drag reduction and heat transfer in high-speed flows, is associated with instabilities. To understand the pulsating flow behavior in front of forward facing spiked blunt nose, numerical ...
    • QUBIC : exploring the primordial universe with the q&u bolometric interferometer 

      Mennella, Aniello; Ade, Peter; Amico, Giorgio; Auguste, Didier; Aumont, Jonathan; Banfi, Stephano; Barbarán, Gustavo; Battaglia, Paola; Battistelli, Elia; Bau, Alessandro; Bélier, Benoit; Bennett, David G.; Bergé, Laurent; Bernard, Jean Philippe; Bersanelli, Marco; Bigot Sazy, Marie Anne; Bleurvacq, Nathan; Bonaparte, Juan; Bonis, Julien; Bunn, Emory; Burke, David; Buzi, Daniele; Buzzelli, Alessandro; Cavaliere, Francesco; Chanial, Pierre; Chapron, Claude; Charlassier, Romain; Columbro, Fabio; Coppi, Gabriele; Coppolecchia, Alessandro; D'Agostino, Rocco; D'Alessandro, Giuseppe; De Bernardis, Paolo; De Gasperis, Giancarlo; De Leo, Michele; De Petris, Marco; Di Donato, Andres; Dumoulin, Louis; Etchegoyen, Alberto; Fasciszewski, Adrián; Franceschet, Cristian; Gamboa Lerena, Martin Miguel; Garcia, Beatriz; Garrido, Xavier; Gaspard, Michel; Gault, Amanda; Gayer, Donnacha; Gervasi, Massimo; Giard, Martin; Giraud Héraud, Yannick; Gómez Berisso, Mariano; González, Manuel; Gradziel, Marcin; Grandsire, Laurent; Guerard, Eric; Hamilton, Jean Christophe; Harari, Diego; Haynes, Vic; Henrot Versillé, Sophie; Hoang, Duc Thuong; Holtzer, Nicolas; Incardona, Federico; Jules, Eric; Kaplan, Jean; Korotkov, Andrei; Kristukat, Christian; Lamagna, Luca; Loucatos, Sotiris; Louis, Thibaut; Lowitz, Amy; Lukovic, Vladimir; Luterstein, Raúl Horacio; Maffei, Bruno; Marnieros, Stefanos; Masi, Silvia; Mattei, Angelo; May, Andrew; McCulloch, Mark; Medina, Maria Clementina; Mele, Lorenzo; Melhuish, Simon J.; Montier, Ludovic; Mousset, Louise; Mundo, Luis Mariano; Murphy, John Anthony; Murphy, James David; O'Sullivan, Creidhe; Olivieri, Emiliano; Paiella, Alessandro; Pajot, Francois; Passerini, Andrea; Pastoriza, Hernan; Pelosi, Alessandro; Perbost, Camille; Perciballi, Maurizio; Pezzotta, Federico; Piacentini, Francesco; Piat, Michel; Piccirillo, Lucio; Pisano, Giampaolo; Polenta, Gianluca; Prele, Damien; Puddu, Roberto; Rambaud, Damien; Ringegni, Pablo; Romero, Gustavo E.; Salatino, Maria; Schillaci, Alessandro; Scóccola, Claudia G.; Scully, Stephen P.; Spinelli, Sebastiano; Stankowiak, Guillaume; Stolpovskiy, Michail; Suarez, Federico; Tartari, Andrea; Thermeau, Jean Pierre; Timbie, Peter; Tomasi, Maurizio; Torchinsky, Steve A.; Tristram, Matthieu; Tucker, Carole E.; Tucker, Gregory S.; Vanneste, Sylvain; Viganó, Daniele; Vittorio, Nicola; Voisin, Fabrice; Watson, Robert; Wicek, Francois; Zannoni, Mario; Zullo, Antonio (MDPI, 2019-01-23)
      In this paper, we describe QUBIC, an experiment that will observe the polarized microwave sky with a novel approach, which combines the sensitivity of state-of-the-art bolometric detectors with the systematic effects control ...
    • Study of direct gas injection into stagnation zone of blunt nose at hypersonic flow 

      Harmon, Peter; Vashishtha, Ashish; Callaghan, Dean; Nolan, Cathal; Deiterding, Ralf (American Institute of Aeronautics and Astronautics, 2021-07-28)
      Direct gas injection in the shocked or compressed region has importance in many applications from drag control to ignition and pressure gain combustion. This numerical study is focused on direct light gas injection into ...
    • Virtual lab for wireless sensor networks 

      Picovici, Dorel; Contiu, Anghel Vasile; Topa, Adina; Nelson, John (Faculty of Electrical Engineering and Computer Science - Stefan cel Mare University of Suceava, Romania, 2008)
      This article details an experimental system developed to enhance the education and research in the area of wireless networks technologies. The system referred, as Virtual Lab (VL) is primarily targeting first time users ...