Results 21 to 30 of about 29,687 (261)

A Level Set Approach for a Premixed Flame Based on a New Concept of Flame Speed

open access: yesJournal of Thermal Science and Technology, 2011
In this paper we propose a new level set approach to describe not only a flame's surface but also to the flame's spatial distribution. First, we derived the mathematical formulation for a one-dimensional laminar premixed flame, where the steady
Yingjie LIU, Nobuyuki OSHIMA
doaj   +1 more source

Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry

open access: yesJournal of Combustion, 2020
This work presents Large Eddy Simulations of the unconfined CORIA Rouen Spray Burner, fed with liquid n-heptane and air. Turbulent combustion modeling is based on the Filtered TAbulated Chemistry model for LES (F-TACLES) formalism, designed to capture ...
Adrien Chatelier   +3 more
doaj   +1 more source

THE RISK-ORIENTED APPROACH TO THE DEVELOPMENT OF CONTROL METHOD

open access: yesПриборы и методы измерений, 2018
The necessity for scientific and methodical study of methods for monitoring the characteristics of flameresistance of building structures has the highest priority in the field of fire safety.
P. S. Serenkov   +3 more
doaj   +1 more source

An engineering model for creeping flame spread over idealized electrical wires in microgravity

open access: yesComptes Rendus. Mécanique, 2023
Flame spread over an insulated electrical wire is a major source of fire scenario in a space vehicle. In this work, an engineering model that predicts the creeping flame spread over cylindrical wires in microgravity is developed.
Coimbra, Alain   +5 more
doaj   +1 more source

Theoretical and numerical study of the combustion properties of premixed hydrogen/natural gas/air at a sub-atmospheric pressure of 0.849 Bar

open access: yesCT&F Ciencia, Tecnología & Futuro, 2021
Due to the energy transition worldwide, renewable energy sources complementary to fossil fuels are being sought. Considering that hydrogen generates only water when reacting with air, the application of hydrogen can play a leading and complementary role ...
Luisa Maya   +2 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Study on flame cutting process of thick stainless-clad steel

open access: yesJournal of Physics: Conference Series, 2023
Abstract In general, three different types of processes can be utilized to cut thick stainless-clad steel: waterjet cutting, mechanical cutting, and thermal cutting (plasma, flame, and EDM cutting). Because stainless steel contains a lot of Cr, Ni, and other elements with high ignition and melting temperatures, flame cutting is not ...
Chunyin Deng   +7 more
openaire   +1 more source

Cracking and Failure Characteristics of Flame Cut Thick Steel Plates [PDF]

open access: yesMetallurgical and Materials Transactions A, 2020
Abstract The manufacturing of thick wear-resistant steel plates commonly leads to a layered structure and non-uniform properties in the thickness direction which makes the processing and utilization of the plates problematic. The processing steps of thick plates include flame cutting, which generates a heat-affected zone and high residual ...
T. Jokiaho   +3 more
openaire   +3 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Buoyancy effects on concurrent flame spread over thick PMMA

open access: yesCombustion and Flame, 2019
The flammability of combustible materials in a spacecraft is important for fire safety applications because the conditions in spacecraft environments differ from those on earth. Experimental testing in space is difficult and expensive. However, reducing buoyancy by decreasing ambient pressure is a possible approach to simulate on-earth the burning ...
Maria Thomsen   +3 more
openaire   +3 more sources

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