The human respiratory system is highly adapted to removing air borne contaminants while maintaining airflow for efficient gas exchange.
These strips deflect debris and create more efficient airflow.
Extant birds stand out from the other living flyers (including bats and insects) in their ability to maintain attached, efficient airflow in flapping and soaring flight with high aspect ratio wing shapes and high wing loadings, even at comparatively high Reynolds numbers [ 1- 3, 5].
One of the key aspects of the Brawn was its clever "double diffuser", which created more efficient aerodynamic airflow and downforce than their rivals (except for Williams and Toyota, who had similar devices) who had not spotted the loophole in the regulations which Ben Wood did.
Multiple (divided) expulsions with intermittent flow might create more turbulent airflow and thus more efficient shear forces along the walls of the lower airways than the continuous airflow of a single expiration.
It was found that the most important aspect for the efficiency of a double-skin facade is the airflow path and the most efficient geometry was the multi-storey double-skin facade, presenting, in average, 30% less HVAC related energy demands.
We learned about Bernoulli's principle and how to read the telltales, which are little yarn streamers attached near the jib that you can use to gauge airflow and steer the most efficient course.
The results show that each single airflow pattern can only be efficient for part of 8 scenarios.
Increasing the number of impacting screens, nR, is shown to improve the collection efficiency up to an optimum for nR = 3 5; beyond nR > 5 impermeability to the airflow makes the fog catcher less efficient.
Other projects financed by the VC fund: In BorgWarner's engine division engineers are working on strategies to optimize airflow in diesel engines for more efficient combustion.
The prediction of airflow resistance is fundamental to the design of efficient drying and aeration systems for pistachio nuts.
