Sunshine Measurements Private Limited Sanjay Nagar, Bangalore, Karnataka

Features : Easy to use, High grade material ,Long life

Wind tunnel is a facility for creating a uniform wind of known value in a duct where fluid flow phenomena can be investigated. It is also very highly useful for training and teaching students in fluid mechanicsaerodynamics. The facility can also be used for testing aircraft models to obtain their performance characteristics and flow features around it. It is also highly useful in industrial aerodynamic testing and simulation studies related to many problems in fluid mechanics. The wind tunnel facility could be specific to the major application required. Actual aircraft model testing may require a high Renold’s number facility. A smoke flow visual station tunnel could be a small tunnel

The flow visualization has played on important role in understanding fluid dynamic phenomena. One of the widely used methods of flow visualization in the smoke flow visualization technique. In this technique a sufficiently dense white smoke in inserted in to the flow continuously. The smoke is a cloud of particles. The cloud density is approximately the same as that of air and the particles sizes distributed as aerosol in the air are sufficient small such that they closely follow the flow pattern and sufficiently large enough to scatter light so that photographs of pattern may be taken.

Feature : Direct Digital Display,Actual Or Differential Settable,Dimensionally Accurate

Electronic Manometer is used for measuring wind speeds, velocity on models etc, besides measuring low pressure differences. The sunshine measurement’s electronic manometer (EM2 100) is designed for such use as above. The range of the pressure transducer used is 0 to 100 millimeter of water (mm H2O). This instrument is specially designed for accurate measurements of wind speeds inside a wind tunnel. The operations are Made to be user friendly.

Application : Industrial Use

Feature : Perfect Finish,Fine Quality,Highly Reliable

Inclined multi-tube manometers are highly useful for capturing pressure distributions from multiple pressure ports on bodies subjected to air flow past them. The adjustable inclination of this manometer helps in enhancing the contrast in the distribution. The inclination also increases the reading value thus increasing the accuracy of the measurement. Water or Methyl Alcohol and Mercury can be used as the fluid in these kind of manometers. Mercury is used only for high speed flows like that in Supersonic wind tunnels.

Features : Suitable pressure ranges,Highly polished

The apparatus is show in figure (1). It consists of two plates one Perspex and the other glass plate held together with a small gap of 1mm. Water flows through this gap from a tank above and flows out in to a small tank below. Flow is controlled by a tap in the bottom tank. Models can be inserted in to the gap from a plug hole on the perplex sheet and the model can be rotated. Colored die can be injected in to the flow through an adjoining small tank connected to a pipe which leads the die to small holes drilled in the Perspex sheet at the top. The die comes out through the holes as streaks when the flow is properly controlled. There is a vent provided to the bottom tank for removing air locks in the bottom tank. Potassium permanganate dissolved in water can be used as a die.

Features : Advanced function , Excellent programming , High performance

The DAWS2000 series of Weather Measurement Systems provide precision measurements using distributed intelligence, and are rugged and battery operated. The power consumption of the DAWS2000 series systems are made minimal for unattended operations. Every intelligent subsystem is switched to measurement mode when required so that the average power required is made small.

Forces acting on bodies which are moving in a Fluid (for example air) are important parameters required in order to analyze and design the bodies and vehicles for their aerohydro dynamic characteristics. These forces are largely estimated by measurement on scaled models of the bodies kept in a wind tunnel operating at a suitable wind speed. The forces are then extrapolated to the full scale. The measurements of these forces are conveniently made by appropriate balances which are designed to suit certain specifications. These specifications normally depend on the loads to be measured, size of the models and size of the wind tunnel etc. The three component balance -WBAL–00103- manufactured by Sunshine measurements is suitable for use in a wind tunnel having a 600mm x 600mm test section and a maximum speed of 50msec. The estimated maximum loads that are likely to occur on typical suitable model of wings, vehicles, etc kept in the wind tunnel of the above size are of the order as follows. Lift: 10 kg Drag: 2 kg Pitching moment: 5kg-mm The Sunshine measurement Balance system suits the above specifications and can be mounted conveniently in 600mm x 600mm test sections.