In this study, the effect of small-scale of both nanostructure and nano-fluid flowing through it on the natural frequency and longitudinal wave propagation are investigated. Here, the stationary and axially moving single-walled carbon nanotube conveying fluid are studied. The boundary conditions for the stationary nanotube is considering clamped-clamped and pined-pined and for the axially movin...

In this study, the influence of architectural design parameters (the exterior window area, wall height at a corridor-side, and door gap toilet unit) on airflow patterns malodorous volatile substance (acetic acid) distributions within units were investigated via computational fluid dynamics (CFD), with restrooms in K–12 public schools (kindergarten through grade 12) Taiwan as research objects. T...

In order to fulfill this objective, field measurement of three different HDB flats, i.e. 3-Room flat, 4-Room flat as well as Executive maisonettee were conducted. The three flat types selected represent the more distinct broad range of public housing accommodation in Singapore. 3 main parameters that include ambient air temperatures, relative humidity as well as air velocity were collected over...

This paper presents an update about recent additions to the Modelica Buildings library. The Modelica Buildings library is a free open-source library with dynamic simulation models for building energy and control systems. The library contains models for air-based HVAC systems, chilled water plants, water-based heating systems, controls, room and envelope heat transfer, multizone airflow, includi...

ROCOM is a four-loop test facility for the investigation of coolant mixing in the primary circuit of pressurized water reactors. Recently, a new sensor was developed for an improved visualisation and quantification of the coolant mixing in the downcomer. This new sensor spans a dense measuring grid and covers nearly the whole downcomer. In the presented work, special emphasis was given to the c...

In this article, the performance of the novel external stimulation oscillator and the optimized selfexcited oscillator has been investigated by CFD numerical simulation. The efficiency and stimulation mechanism of the two kinds of oscillators were analyzed in numeric form. The cycle proportion of wall-attached jet switching time was calculated separately at different operating frequency. Additi...

Predicting building air change rates is a challenge for designers seeking to deal with natural ventilation, more and popular passive strategy. Among the methods available this task, computational fluid dynamics (CFD) appears most compelling, in ascending use. However, CFD simulations require range of settings skills that inhibit its wide application. With primary goal providing pragmatic applic...

Computational fluid dynamics (CFD) is a simulation tool, which uses powerful computer and applied mathematics to model fluid flow situations for the prediction of heat, mass and momentum transfer and optimal design in industrial processes. It is only in recent years that CFD has been applied in the food processing industry. This paper reviews the application of CFD in food processing industries...