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Numerical simulations for multi-hole orifice flow meter
Affiliation:1. Thermal Engineering Division, Mechanical Engineering Systems Area, Space Application Centre, Ahmedabad 380015, India;2. Flow and Acoustics Group, Propulsion Research and Studies Entity, Liquid Propulsion Systems Centre, Trivandrum 695547, India;1. IHC MTI, Smitweg 6, 2961 AW Kinderdijk, The Netherlands;2. Delft University of Technology, Faculty of Mechanical, Maritime and Materials Engineering, Section of Dredging Engineering, Mekelweg 2, 2628 CD Delft, The Netherlands;3. Specialist Advisor Instrumentation, Deltares, PO Box 177, 2600 MH Delft, The Netherlands;1. Universidade Estadual Paulista, Campus de Guaratinguetá, Guaratinguetá, SP, Brazil;2. Fundação Oswaldo Aranha, Volta Redonda, RJ, Brazil;3. Usina Presidente Vargas, Companhia Siderúrgica Nacional, Volta Redonda, RJ, Brazil;4. Universidade Federal de Itajubá, Itajubá, Brazil;1. Petrobras, Centro de Pesquisas e Desenvolvimento Leopoldo Américo Miguez de Mello, CEP 21941-598, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, Brazil;2. Departmento de Engenharia Mecânica, Escola Politécnica, Universidade de São Paulo Av. Prof. Mello Moraes, 2231, CEP 05508-900, Cidade Universitária, São Paulo, SP, Brazil;3. Petrobras, Unidade de Operações de Exploração e Produção da Amazônia, Rua Darci Vargas, 645, CEP 69050-020, Chapada, Manaus, AM, Brazil;4. Department of Petroleum Engineering and Applied Geophysics, Norwegian University of Science and Technology, 7491 Trondheim, Norway;1. Centro de Desenvolvimento da Tecnologia Nuclear, Comissão Nacional de Energia Nuclear, Av. Pres. Antônio Carlos, 6627, 30270-901 Belo Horizonte, MG, Brazil;2. Faculdade de Engenharia Química, Universidade Estadual de Campinas – UNICAMP, Av. Albert Einstein, 500, 13.083-852 Campinas, SP, Brazil;1. Unité de Recherche Matériaux - Procédés et Environnement (UR-MPE), Faculté des Sciences de l’Ingénieur, Université M’Hamed BOUGARA de Boumerdes, Avenue de I''indépendance, 35000, Boumerdes, Algeria;2. Unité de Recherche en Energies Renouvelables en Milieu Saharien, URERMS, Centre de Développement des Energies Renouvelables, CDER, 01000, Adrar, Algeria;3. Laboratoire de Fiabilité des Equipements Pétroliers et Matériaux (LFEPM), Faculté des Hydrocarbures et de la Chimie, Université M’Hamed BOUGARA de Boumerdes, Avenue de I''indépendance, 35000, Boumerdes, Algeria;4. Département Sciences de la Matière, Faculté des Sciences et de la Technologie, Université Ahmed Draia d’Adrar, 01000, Adrar, Algeria;1. Institution for Disaster Management and Reconstruction, Sichuan University, Chengdu 610207, China;2. School of Engineering, Southwest Petroleum University, Nanchong 637001, China;3. College of Architecture and Environment, Sichuan University, Chengdu 610065, China;4. Gas Management Office, PetroChina Southwest Oil & Gas Field Company, Chengdu 610215, China;5. Petrochina Southwest Pipeline Company, Chengdu 610000, China;6. Chengdu Li Chuang Mold Limited Company, Chengdu 610213, China
Abstract:The measurement of flow rate is important in many industrial applications including rocket propellant stages. The orifice flow meter has the advantages of compact size and weight. However, the conventional single-hole orifice flow meter suffers from higher pressure drop due to lower discharge coefficient (Cd). This can be overcome by the use of multi-hole orifice flow meter. Flow characteristics of multi-hole orifice flow meters are determined both numerically and experimentally over a wide range of Reynolds numbers. Computational fluid dynamics (CFD) is used to simulate the flow in the single- and multi-hole orifice flow meters. Experiments are carried out to validate the CFD predictions. The discharge coefficients for the different orifice configurations are determined from the CFD simulations. It is observed that the pressure loss in the multi-hole orifice flow meter is significantly lower than that of single-hole orifice flow meter of identical flow area due to the early reattachment of flow in the case of the multi-hole orifice meter. The influence of different geometrical and flow parameters on discharge coefficient is also determined.
Keywords:Orifice flow meter  Pressure recovery  Computational fluid dynamics and coefficient of discharge
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