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  • Large eddy simulations (LES) of a three-element high-lift wing: Exploring the active flow control (AFC) capabilities 

    Montalà Sales, Ricard; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (Elsevier, 2024-08-05)
    Article
    Open Access
    This study presents an aerodynamic analysis of the 30P30N high-lift three-element wing under varying the angle of attack (a = 5¿, 9¿, and 23¿) at a constant Reynolds number (Rec = 750, 000) by means of large eddy simulations ...

  • An experimental investigation of the thermal flame structure during side-wall quenching of a laminar premixed flame 

    Padhiary, Abhijit; Collins, Joshua; Ojo, Anthony; Escofet Martín, David; Dreizler, Andreas; Peterson, Brian (Elsevier, 2024-07-01)
    Article
    Open Access
    The thermal flame structure (i.e., the temperature distribution in the preheat and reaction zones) is a core element that describes fundamental flame behavior and chemical reactions. This work utilizes a suite of laser ...

  • Computational analysis of nasal airflow and its alteration by a nasal dilator 

    Lee, Kyun Bum; Ventosa Molina, Jordi; Fröhlich, Jochen (Elsevier, 2024-08)
    Article
    Restricted access - publisher's policy
    Nasal airflow obstruction correlates with several ailments, such as higher patency, increased friction at the mucosal wall or the so-called Little's area, improper air conditioning, and snoring. Nasal dilators are frequently ...

  • On the flow past a three-element wing: mean flow and turbulent statistics 

    Montalà Sales, Ricard; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (Springer, 2024-07-04)
    Article
    Open Access
    Large eddy simulations (LES) on the flow past the 30P30N three-element high-lift wing at a moderate Reynolds number Rec = 750, 000 and three different angles of attack α = 5, 9 and 23° are conducted. The main focus is on ...

  • The origin of Jupiter's Great Red Spot 

    Sanchez Lavega, Agustin; García Melendo, Enrique José; Legarreta, Jon J.; Miró Jané, Arnau; Soria Guerrero, Manel; Ahrens Velásquez, Kevin (2024-06-28)
    Article
    Open Access
    Jupiter's Great Red Spot (GRS) is the largest and longest-lived known vortex of all solar system planets but its lifetime is debated and its formation mechanism remains hidden. G. D. Cassini discovered in 1665 the presence ...

  • Revisiting N2-N2 collisional linewidth models for S-branch rotational Raman scattering 

    Linne, Mark; Mecker, Nils Torge; Kliewer, Christopher; Escofet Martín, David; Peterson, Brian (2022-09)
    Article
    Open Access
    This paper presents an evaluation of two commonly accepted Raman linewidth models typically used to fit CARS model parameters to data; the Modified Exponential Gap (MEG) and the Energy Corrected Sudden (ECS) models. The ...

  • Report on the Iberia Pilot Center 

    Pons Prats, Jordi; Oñate Ibáñez de Navarra, Eugenio; Rodríguez Pérez, Ivette María; Meseguer Serrano, Álvaro; Valero Sanchez, Eusebio; Ferrer Vaccarezza, Esteban; Discetti, Stefano; Vázquez Vilamajó, Lluís; Lehmkuhl Barba, Oriol; Lehmkuhl Barba, Oriol; López González-Nieto, Pilar (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023-07-13)
    Article
    Open Access
    The Spanish Pilot Centre of ERCOFTAC composes of six members. The Center is coordinated by Prof. Eugenio Oñate from the International Center for Numerical Methods in Engineering (CIMNE) and Technical University of Catalonia ...

  • Precise surface temperature measurements at kHz-rates using phosphor thermometry to study flame-wall interactions in narrow passages 

    Ojo, Anthony; Escofet Martín, David; Abram, Cristohper; Fond, Benoit; Peterson, Brian (2022-06)
    Article
    Open Access
    The thermographic phosphor ScVO4:Bi3+ is used to obtain time-resolved surface temperature measurements with sub- °C precision at 5 kHz. Measurements are used to study transient heat loss and flame-wall interactions (FWI) ...

  • High-precision 2D surface phosphor thermometry at kHz-rates during flame-wall interaction in narrow passages 

    Ojo, Anthony; Escofet Martín, David; Peterson, Brian (2023)
    Article
    Restricted access - publisher's policy
    This work demonstrates high-speed 2D wall temperature measurements occurring during flame-wall interaction (FWI) within a narrow channel. Such measurements are essential to understand transient wall heat transfer and flame ...

  • PLIF and chemiluminescence in a small laminar coflow methane-air diffusion flame at elevated pressures 

    Escofet Martín, David; Chien, Yu-Chien; Dunn-Rankin, Derek (2022-09)
    Article
    Open Access
    Fluorescence and chemiluminescence are significant diagnostic tools in combustion research. This experi- mental work studies OH PLIF and the OH electronically excited state OH * that provide beneficial insights regarding ...

  • Ultrafast multi-photon excitation of ScVO4:Bi3+ for luminescence thermometry 

    Escofet Martín, David; Ojo, Anthony; Peterson, Brian (2022-01-01)
    Article
    Open Access
    We demonstrate a multi-photon excitation (MPE) scheme for luminescence thermometry using ScVO4:Bi3+. MPE is performed using a 37 fs Ti:sapphire laser pulse centered at 800 nm. Log-log plots of the phosphorescence intensity ...

  • Toward the usage of deep learning surrogate models in ground vehicle aerodynamics 

    Eiximeno Franch, Benet; Miró Jané, Arnau; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol (Multidisciplinary Digital Publishing Institute (MDPI), 2024-03-27)
    Article
    Open Access
    This study introduces a deep learning surrogate model designed to predict the evolution of the mean pressure coefficient on the back face of a Windsor body across a range of yaw angles from 2.5◦ to 10◦ . Utilizing a ...

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