Numerical modelling of drifting flame tubes

نویسندگان
چکیده

برای دانلود رایگان 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

Numerical investigation of plasma / flame interactions

Flame ignition or extinction is the result of very complex interactions between combustion chemistry and turbulence. It has been recently observed in experimental studies [1,2] that the presence of a plasma discharge in the vicinity of reaction zones affects combustion. For instance, a discharge generated in a combustion chamber produces a pool of radicals. These highly reactive species strongl...

متن کامل

Microgravity opposed-flow flame spread in polyvinyl chloride tubes

The effects of gravity on opposed-flow flame spread in a confined geometry were investigated experimentally in the 2.2-s drop tower at the NASA Glenn Research Center. Pure oxygen flowed through samples of 0.64-cminner-diameter polyvinyl chloride (PVC) tubing held either horizontally or vertically in a combustion chamber filled with nitrogen. The sample was ignited in normal gravity with a hot w...

متن کامل

Oscillatory flame edge propagation, isolated flame tubes and stability in a non-premixed counterflow

An investigation is carried out into the ranges of Damköhler number and Lewis number, less than unity, in which different forms of combustion phenomena arise within a non-premixed counterflow; cases that are symmetrical across the counterflow are chosen for study. These link oscillatory and steady propagation of flame edges, zero propagation speeds, isolated flame tubes, quenching and marginal ...

متن کامل

Field Modelling of Non-Charring Flame Spread

The paper describes a methodology for the field modelling of non-charring flame spread over representative solid surfaces. Coupled descriptions of the controlling mechanisms of buoyancydriven flow, combustion, soot production, radiation heat transfer and solid pyrolysis are incorporated into a fire-specific CFD code. The approach is evaluated at sub-model level and in a room corner fire configu...

متن کامل

Numerical simulation of drifting snow sublimation in the saltation layer

Snow sublimation is an important hydrological process and one of the main causes of the temporal and spatial variation of snow distribution. Compared with surface sublimation, drifting snow sublimation is more effective due to the greater surface exposure area of snow particles in the air. Previous studies of drifting snow sublimation have focused on suspended snow, and few have considered salt...

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: ANZIAM Journal

سال: 2007

ISSN: 1445-8810

DOI: 10.21914/anziamj.v48i0.71