Browsing by Author "Rodríguez Pérez, Ivette María"
Now showing items 1-20 of 123
-
A dynamic wall model for large eddy simulation on unstructured meshes. Application to wind turbine dedicated airfoils
(Begell House, 2015)
Conference report
Restricted access - publisher's policyLarge eddy simulations (LES) of wall resolved flows at high Reynolds number are still computation-ally demanding. In the present work, a new Dynamic Wall Model (DWM) for LES is presented. The methodology, implemented on ... -
A low-dissipation finite element scheme for scale resolving simulations of turbulent flows
(2019-08-01)
Article
Open AccessThe present work extends the conservative convective scheme proposed by Charnyi et al. (2017) [13], originally formulated for mixed finite elements and tested in laminar flows, to equal order finite elements. A non-incremental ... -
A new thermocline-PCM thermal storage concept for CSP plants. Numerical analysis and perspectives
(2013)
Conference report
Open AccessThermocline storage concept has been considered for more than a decade as a possible solution to reduce the huge cost of the storage system in CSP plants. However, one of the drawbacks of this concept is the decrease in ... -
A review study on the modeling of high-temperature solar thermal collector systems
(2019-09-01)
Article
Open AccessConcentrated solar power technologies are gaining more attention in the last two decades in order to replace the conventional power technologies and reduce their environmental impact. Among the developed concentrating ... -
Active flow control for external aerodynamics: from micro air vehicles to a full aircraft in stall
(Institute of Physics (IOP), 2020-04-01)
Article
Open AccessWe investigate the aerodynamic performance of active flow control of airfoils and wings using synthetic jets with zero net-mass flow. The study is conducted via wall-resolved and wall-modeled large-eddy simulation using ... -
Active flow control of an aircraft in full stall
(2021)
Conference report
Open AccessThe aerodynamic performance of active flow control on wings using synthetic jets with zero net-mass flow is investigated. The study is conducted via wall-modeled large-eddy simulations using a finiteelement-based solver. ... -
Active flow control on SD7003 airfoil using synthetic jets
(2019)
Conference report
Restricted access - publisher's policyThe present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag ... -
Analyzing the performance of a miniature 3D wind sensor for Mars
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-20)
Article
Open AccessThis paper analyzes the behavior of a miniature 3D wind sensor designed for Mars atmosphere. The sensor is a spherical structure of 10 mm diameter divided in four sectors. By setting all the sectors to constant temperature, ... -
Aspect ratio influence on the vortex induced vibrations of a pivoted finite height cylinder at low Reynolds number
(2023-08-10)
Article
Open AccessThe effect of the aspect ratio on the vortex induced vibrations (VIV) of a pivoted finite length circular cylinder is investigated. A fixed value of the Reynolds number Re = 100 with four values of the aspect ratio ... -
Assessment of the symmetry-preserving regularization model on complex flows using unstructured grids
(2012-05-15)
Article
Restricted access - publisher's policyThe main objective of the present paper is the assessment of symmetry-preserving regularization models on unstructured meshes. Three different test cases have been studied: the impinging jet flow, the flow past a circular ... -
Boundary layer flow control using synthetic jets on the flow over a NACA 0012 airfoil
(2017)
Conference report
Restricted access - publisher's policyNumerical simulations of the flow control using a synthetic jet are presented. The flow considered is around a NACA 0012 airfoil at Re = 5000 and the actuator is located at 6% of the chord from the leading edge. This work ... -
Characteristics of the near wake region behind a cylinder at critical and super-critical Reynolds numbers
(Begell House, 2015)
Conference report
Restricted access - publisher's policyLarge-eddy simulations (LES) of the flow past a circular cylinder are used to investigate the characteristics of the near wake region at Reynolds numbers Re = 2.5 × 105 - 8.5 × 105. This range encompasses both the critical ... -
Coherent structures in a flow past a circular cylinder at critical and super-critical Reynolds numbers
(Springer, 2015)
Conference report
Restricted access - publisher's policyIt is well known that the wake topology in the flow past a circular cylinder remains almost unchanged up to Reynolds number ~105 Williamson (Annu Rev Fluid Mech 28(1), 477–539 (1996)) [1]. Then, at Re~2×105 major changes ... -
Comparison of the performance of falling film and bubble absorbers for air-cooled absorption systems
(2009-07-01)
Article
Open AccessSmall capacity, air-cooled NH3–H2O absorption systems are becoming more attractive in applications where the input energy can be obtained for free (e.g., solar energy, exhaust gases of engines, etc.), due to the increasing ... -
Compressibility effects on the wake dynamics of a circular cylinder
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Conference report
Open AccessCompressible large-eddy simulations of the flow past a circular cylinder at Reynolds numbers Re = 104 and Mach numbers in the range M = 0.2-1.2 are performed. Changes in the wake dynamics, coherent structures and flow ... -
Coupling CFD models of airflow with building simulation with an object-oriented and parallel infrastructure
(2012)
Conference report
Restricted access - publisher's policyIntegrating CFD & HT models with the general building program raises the computational time of building simulations as these simulations are usually performed over a period of one year. Within this context, our aim is ... -
Design and smart control of sensors for optimal performance: a application to wind sensing in Mars
(2019)
Conference report
Open AccessSensor performance in terms of time response and sensitivity can be dramatically enhanced by operating sensors under what may be called a “constant state operation”. This means that any change in the sensor due to external ... -
Detailed numerical model for the resolution of molten salt storage tanks for CSP plants
(2012)
Conference report
Open AccessConsidering the state-of-the-art in TES technologies, two-tank indirect system using molten salt is the most widespread within CSP plants. However, current techniques for design and optimization, as well as, for assessing ... -
Development of a multi-functional ventilated façade with an integrated collector-storage: numerical model and experimental facility
(2011)
Conference report
Open AccessThe paper reports on physical modeling and experimental evaluation of glazed systems. A multi-functional ventilated façade with an integrated collector-storage is developed and mounted on a test cell facility under real ... -
Direct and large eddy simulations of non-Oberbeck-Boussinesq effects in a turbulent tall water-filled differentially heated cavity
(2015)
Conference report
Restricted access - publisher's policyThe present work first submits to investigation the non-Oberbeck-Boussinesq (NOB) effects in a tall water-filled differentially heated cavity by means of direct numerical simulations. The results reveal that if NOB effects ...
