Genetically-inspired convective heat transfer enhancement in a turbulent boundary layer

نویسندگان

چکیده

The convective heat transfer in a turbulent boundary layer (TBL) on flat plate is enhanced using an artificial intelligence approach based linear genetic algorithms control (LGAC). actuator set of six slot jets crossflow aligned with the freestream. An open-loop optimal periodic forcing defined by carrier frequency, duty cycle and phase difference between actuators as parameters. laws are optimised respect to unperturbed TBL actuation steady jet. cost function includes wall rate actuation. performance controller assessed infrared thermography characterised also particle image velocimetry measurements. yields slightly asymmetric flow field. LGAC algorithm converges same frequency for all actuators. It noted that such strikingly equal inverse characteristic travel time large-scale structures advected within near-wall region. multiple jet has shown be very relevant main driver asymmetry. results pinpoint potential machine learning unravelling unexplored controllers space. Our study furthermore demonstrates viability employing sophisticated measurement techniques together advanced experimental investigation.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Three-Dimensional Boundary Layer Flow and Heat Transfer of a Dusty Fluid Towards a Stretching Sheet with Convective Boundary Conditions

The steady three-dimensional boundary layer flow and heat transfer of a dusty fluid towards a stretching sheet with convective boundary conditions is investigated by using similarity solution approach. The free stream along z-direction impinges on the stretching sheet to produce a flow with different velocity components. The governing equations are reduced into ordinary differential equations b...

متن کامل

Simulation of particle diffusion and heat transfer in a two-phase turbulent boundary layer using the Eulerian-Eulerian approach

This work investigates the response of two-dimensional, turbulent boundary layer characteristics over a flat plate to the presence of suspended particulate matter. Both phases are assumed to be interacting continua. That is, the carrier fluid equations are considered to be coupled with the particle-phase equations. A finite-difference technique with non-uniform grid has been employed for the so...

متن کامل

Factor Effect Estimation in the Convective Heat Transfer Coefficient Enhancement of Al2O3/EG Nanofluid in a Double-pipe Heat Exchanger

The forced convective heat transfer (CHT) coefficient of a particular nanofluid, Al2O3 nanoparticles-ethylene glycol (EG) mixture, was investigated experimentally in a double-pipe heat exchanger. The nanofluid Nusselt number for different nanoparticles’ concentrations as well as various operating temperatures was measured to be increased up to 23.7% using 1.0% wt of nanoparticles. The significa...

متن کامل

Forced Convective Heat Transfer in Boundary Layer Flow of Sisko Fluid over a Nonlinear Stretching Sheet

The major focus of this article is to analyze the forced convective heat transfer in a steady boundary layer flow of Sisko fluid over a nonlinear stretching sheet. Two cases are studied, namely (i) the sheet with variable temperature (PST case) and (ii) the sheet with variable heat flux (PHF case). The heat transfer aspects are investigated for both integer and non-integer values of the power-l...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Thermal Engineering

سال: 2023

ISSN: ['1873-5606', '1359-4311']

DOI: https://doi.org/10.1016/j.applthermaleng.2023.120621