Now showing items 1-16 of 16

    • A finite volume method to solve the frost growth using dynamic meshes 

      Bartrons Casademont, Eduard; Oliet Casasayas, Carles; Gutiérrez Álvarez, Enrique; Naseri, Alireza; Pérez Segarra, Carlos David (2018-09-01)
      Article
      Open Access
      The physical mechanisms of frost formation have been widely studied, yet much empirism is still needed in numerical approaches. Indeed, accurate simulations of frost growth can be reached by setting up a specific combination ...
    • A fluid-structure interaction solver for the fluid flow through reed type valves 

      González Acedo, Ignacio; Naseri, Alireza; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David; Oliva Llena, Asensio (Institute of Physics (IOP), 2017)
      Conference lecture
      Open Access
      Suction and discharge processes with self actuated valves have a major influence in efficiency and reliability of hermetic reciprocating compressors. Understanding the operation completely in order to enhance compressor's ...
    • A method for fluid-structure interaction problems with non-Newtonian fluid 

      Amani, Ahmad; Naseri, Alireza; Pérez Segarra, Carlos David; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      This paper represents a numerical method to solve fluid-structure interaction (FSI) problems where the fluid exhibits a non-Newtonian Viscoelastic behaviour. Oldroyd-B constitutive equation is used to model Viscoelastic fluid. ...
    • A numerical approach for non-Newtonian two-phase flows using a conservative level-set method 

      Amani, Ahmad; Balcázar Arciniega, Néstor; Naseri, Alireza; Rigola Serrano, Joaquim (2020-04-01)
      Article
      Open Access
      A finite-volume based conservative level-set method is presented to numerically solve the non-Newtonian multiphase flow problems. One set of governing equations is written for the whole domain, and different phases are ...
    • A scalable framework for the partitioned solution of fluid-structure interaction problems 

      Naseri, Alireza; Totounferoush, Amin; González Acedo, Ignacio; Mehl, Miriam; Pérez Segarra, Carlos David (Springer, 2020-08)
      Article
      Open Access
      In this work, we present a scalable and efficient parallel solver for the partitioned solution of fluid–structure interaction problems through multi-code coupling. Two instances of an in-house parallel software, TermoFluids, ...
    • A second-order time accurate semi-implicit method for fluid–structure interaction problems 

      Naseri, Alireza; González Acedo, Ignacio; Amani, Ahmad; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2019-04-01)
      Article
      Open Access
      This paper is concerned with numerical solution of fluid-structure inter-action (FSI) problems involving an incompressible viscous flow and an elasticstructure. A semi-implicit partitioned method with second-order ...
    • A semi-implicit coupling technique for fluid–structure interaction problems with strong added-mass effect 

      Naseri, Alireza; Lehmkuhl Barba, Oriol; González Acedo, Ignacio; Bartrons Casademont, Eduard; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2018-07-01)
      Article
      Open Access
      This paper is concerned with the numerical simulation of fluid–structure interaction problems involving an incompressible viscous flow and an elastic structure. A semi-implicit coupling technique is presented which strongly ...
    • A Study of binary collision of GNF droplets using a conservative level-set method 

      Amani, Ahmad; Balcázar Arciniega, Néstor; Naseri, Alireza; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      In this study, numerical simulations of binary droplet collisions of two GNF droplets are carried out. Navier-Stokes equations are solved for fluid motion both inside and outside of the droplet using a conservative ...
    • An enhanced finite volume based solver for thermoelastic materials in fluid-structure coupled problems 

      González Acedo, Ignacio; Naseri, Alireza; Chiva Segura, Jorge; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (2018)
      Conference report
      Restricted access - publisher's policy
    • Detailed prediction of fluid-solid coupled phenomena of turbulent flow through reed valves 

      González Acedo, Ignacio; Naseri, Alireza; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David; Oliva Llena, Asensio (Institute of Physics (IOP), 2019)
      Conference report
      Open Access
      The operation of self-actuated valves in suction and discharge processes plays a crucial role in the thermal efficiency and structural reliability of hermetic reciprocating compressors. The present work provides a thorough ...
    • Developing numerical methods for fully-coupled nonlinear fluid-structure interaction problems 

      Naseri, Alireza (Universitat Politècnica de Catalunya, 2019-07-22)
      Doctoral thesis
      Open Access
      This thesis is dedicated to developing numerical methods to solve fluid-structure interaction (FSI) problems. FSI features in a vast range of physical systems and has a wide application in engineering. The work of this ...
    • Development of Innovative Heat Sinks for Power Electronics Cooling within the More Electrical Aircraft 

      Oliet Casasayas, Carles; Naseri, Alireza; Rigola Serrano, Joaquim; Oliva Llena, Asensio; Mullen, David; McKay, Connor; Hoell, Klaus; Preishuber-Pfluegl, Florian; Migneau, Maxime (European Conference for AeroSpace Sciences (EUCASS), 2019)
      Conference report
      Open Access
    • Experimental investigation of inlet distortion effect on performance of a micro gas turbine 

      Naseri, Alireza; Sammak, Shervin; Boroomand, Masoud; Alihosseini, Alireza; Tousi, Abolghasem M. (2018-09-01)
      Article
      Open Access
      An experimental study has been carried out to determine how inlet total-pressure distortion affects the performance of a micro gas turbine. An inlet simulator is designed and developed to produce and measure distortion ...
    • Fluid-structure interaction of a reed type valve 

      González Acedo, Ignacio; Lehmkuhl Barba, Oriol; Naseri, Alireza; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Purdue University, 2016)
      Conference report
      Restricted access - publisher's policy
      This paper presents a complete numerical procedure to study the fluid-structure interaction problem of incompressible flow through reed valves, typically employed in hermetic reciprocating compressors. A partitioned ...
    • Partitioned semi-implicit methods for simulation of biomechanical fluid-structure interaction problems 

      Naseri, Alireza; Lehmkuhl Barba, Oriol; González Acedo, Ignacio; Oliva Llena, Asensio (Institute of Physics (IOP), 2016)
      Conference report
      Open Access
      This paper represents numerical simulation of fluid-structure interaction (FSI) system involving an incompressible viscous fluid and a lightweight elastic structure. We follow a semi-implicit approach in which we implicitly ...
    • Second-Order Semi-Implicit Partitioned Method for Fluid-Structure Interaction Problems 

      Naseri, Alireza; González Acedo, Ignacio; Amani, Ahmad; Pérez Segarra, Carlos David (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2018)
      Conference report
      Restricted access - publisher's policy
      This paper is concerned with numerical solution of fluid-structure interaction (FSI) problems involving an incompressible viscous flow and an elastic structure. A second-order time accurate semi-implicit method is proposed ...