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1 The axis of a flame tube being parallel to that of an engine, the flame crossover tube of a turbine combustor is usually orthogonal with respect to the flame tube.

2 The flame tube of combustor consists of fuel nozzle, double inverse swirlers, venturi flare and primary holes and so on.

3 The dangerous area of flame tube is on the front edge of the swirler.

4 A flame tube of the fireplace is internally added with heat preservation stone.

5 The gas burner may include an optional flame tube with an optional exhaust port in which a flame is contained and sequestered from diffusing air.

6 In order to improve the design of the swirler and flame tube, thereby to improve the performance of combustor ,(www.Sentencedict.com) the structure of fuel spray in combustor needs to be investigated intensively.

7 Results indicated that a high and uniform temperature can be obtained along the wall of the flame tube.

8 The wall temperature increases with a rise of inlet temperature, but changes of the wall temperature distributions of the flame tube are not obvious.

9 The blade-type swirlers have been used in many air engine combustors to control the primary airflow of flame tube and establish a strong recirculation zone.

10 This paper provides a new method suitable for calculating wall temperature and heat flow of ceramic-coated flame tube.

11 Combustion instability not only affects the stability of the aero-engine work, but also caused the combustion chamber flame tube thin-walled structure acoustic-vibration coupled fatigue.

12 Heat transfer numerical analysis methods, maths model, and boundary condition treatment for an impingement-effusion cooled flame tube floating tile are discussed in the paper.

13 The numerical study aims at obtaining a calculation method of flame tube wall temperature.