Numerical Simulation On Air Distribution Of Cruise Readingroom In Different Ventilation Modes

The cruise reading room is an important place for tourists to provide leisure and entertainment.Compared with the land reading room,it has the characteristics of floor height and fixed layout.A well-designed cabin airflow organization can not only create a good thermal and humid environment for readers,but also significantly improve indoor air quality.The air supply method plays a decisive role in the airflow organization.Therefore,the different air supply methods of the cruise reading room are designed and Evaluation is very necessary.In this paper,a cruise ship reading room is used as the research object,and numerical simulation method is used as the main research method to comprehensively evaluate the effect of indoor airflow organization under different air supply modes.Use numerical simulation software Airpak to model and mesh the cruise reading room model under three traditional air supply modes: floor air supply,displacement ventilation and mixed ventilation,change the position of air supply outlets in each air supply plan,set initial conditions and Perform simulation calculations after boundary conditions.Then,according to the three types of air distribution evaluation indicators,the indoor flow field under different air supply modes is evaluated,and the advantages and disadvantages of the air distribution of each air supply scheme are analyzed,and the best air supply scheme among the three air supply schemes is obtained through the analytic hierarchy process.As a new type of air supply method,station air supply has its unique air supply concept and energy-saving advantages.In order to explore the feasibility of station air supply in the cruise reading room,this paper uses a numerical simulation method to establish a station air supply model in the cruise reading room,and simulates the station air supply conditions with different air supply speeds and different air supply angles.Calculate and compare each evaluation index to obtain suitable air supply parameters for the station.On this basis,a combined air supply model with station air supply and three traditional methods as background air supply are established.After numerical simulation calculations,a comprehensive comparison is made with each traditional air supply method under separate air supply conditions,and the station is obtained.It is concluded that the combined operation of air supply and background air supply has a better indoor airflow organization effect,and the indoor airflow organization is best when the station air supply and displacement air supply are operated in combination.