An experimental investigation of the flow past a finite circular cylinder at a low subcritical Reynolds number

Results of hot wire measurements made in the near wake at a Reynolds number of 9955 are reported. The measurements include the mean velocity profiles, root mean square values of the velocity fluctuations, frequency spectra, and velocity cross correlations. The mean velocity profiles were used to determine the wake width, whose variation in the downstream and spanwise directions was examined. It is observed that close to the cylinder, the wake is narrower toward the free end than it is away from it, while further downstream the wake is wider toward the tip than it is away from it. It is found that the flow over the span can be characterized by four regions: a tip region where vortex shedding occurs at a lower frequency than that prevalent for away from the tip; an intermediate region adjacent to the first one where a frequency component of a nonshedding character is present; a third region characterized by a gradually increasing shedding frequency with increasing distance from the tip; and a two dimensional region where the shedding frequency is constant

SCALE REMOVAL FROM HEAT-EXCHANGERS - USING ENERGY-UTILIZATION AS A SCHEDULE CRITERION

A function which shows explicitly the utilization of energy over time is provided. Using this function and a specified level of energy utilization, a schedule for scale removal is deduced. The methodology is applied to obtain a schedule for a brine heat exchanger in a desalination plant

SCALE REMOVAL FROM HEAT-EXCHANGERS - USING ENERGY-UTILIZATION AS A SCHEDULE CRITERION

A function which shows explicitly the utilization of energy over time is provided. Using this function and a specified level of energy utilization, a schedule for scale removal is deduced. The methodology is applied to obtain a schedule for a brine heat exchanger in a desalination plant

Non drug related cutaneous hyperpigmentation in a patient with malaria

Although there is an increasing interest in “alternative medicine,” including traditional, nontraditional and homeopathic remedies all around the world, they are not always safe and beneficial and may have adverse effects. We report a bizarre skin discoloration in a sedated patient which caused confusion to the treating team and ended up to be caused by local remedy applied topically

Scale removal from heat-exchangers: Using energy utilization as a schedule criterion

A function which shows explicitly the utilization of energy over time is provided. Using this function and a specified level of energy utilization, a schedule for scale removal is deduced. The methodology is applied to obtain a schedule for a brine heat-exchanger in a desalination plant.