Fluid Mechanics-Contemporary issues in Fluid mechanics
The human world is currently using great physics skills without really knowing that it is the physics concepts behind the actions of machines. For example, in the vehicles the physics is applied in breaks, in air pollution control measures it is also evident. In the physics world, the different branches of include the fluid mechanics, thermodynamics, structural mechanics and tribology. In our lives today there is flow of blood in the veins and capillaries. The mechanism in the blood flow also elaborates how fluid flow plays a very vital role in the human body cells. The numerous body activities of fluid flow include the osmosis, diffusion and pumping of blood by the heart. It is from the study of the branches of physics such as the fluid mechanic that one is able to determine some hazardous risk that are a costed to the fluid mechanism. After finding how the fluid mechanics operates it would then be easy to define control measure to prevent such incidences in the current world. And if those accidents have already occurred human fraternity can deduce a method to work its solution. Today the knowledge of the fluid mechanics has been applied in homes, hospitals and building of philosophies that guides institutions.
Application of fluid mechanic in daily lives of the human world
Fluid mechanics is a branch of physics that deal with the properties of fluids in different states and the reaction opposing them. (Yunus 185). The fluid mechanics has been applied in the in the environmental control of pollution, fuel construction, mining, power generation and solving the water shortages. Today you walk in cities and towns you see kinds of technologies and wonder how things and vehicles move, hot air balloons among many other technologies. The items in one way or the other uses the physics of fluid mechanics. When you get, children say they want air balloons it sounds so simple and admirable but behind technique involved in the hot air balloon is all about fluid mechanics. In the field of biomedical, the study of fluids helps us understand the use of syringe needles. The idea behind needles syringe include the use of volume and pressure that will affect and detect how the syringe work. When air is drawn out the pressure decreases and the volume increases this mechanism allows the liquid medicine to be sucked in through the narrow needle opening. (Yunus 187) Through the use of syringe doctors are able to admit the right dosage to the patients. Another simple application of the fluid mechanic is the hot air balloon. The heated air in the balloon makes the air to be less dense hence will float so easily on the air which is denser since it is cold air. In applying of the body lotion before we go to work, school or elsewhere we will apply fluid anyway. When applying lotion, we have to press the container having the lotion. When pressing the lotion both sides creates pressure on the fluid which is the lotion enabling it to flow out into the palm. In washing of dishes the concept of fluid mechanics is real that is the viscosity of the detergent enable a plate to slip in our hands. Through this we get ease with less friction involved. Another simpler application of fluid mechanic is the styling and makeup. when applying face powder, we use a sponge to spread it over the face, as we spread the make up using the sponge we involve share and pressure. In turn the cooling effect and the good looks are as a result of fluid mechanism application. Therefore, it is evident to say that each day of our lives without knowing we apply the fluid mechanic and it works.
Fluid mechanics in indoor air pollution of toxic gases and small particulates
surprisingly enough the fluid mechanic has great impact on our daily lives. Through the study of fluids, we can determine some risks caused by fluids in our daily living in the houses and the vicinity at large. Here are some problems that are caused by the fluid mechanics in the modern world.
Indoor air pollution
There is continued use increase in the pollutions in the houses today. The pollution might be caused accidentally or knowingly through unhygienic practices for example if the amount of air getting into the rooms are far much less than the getting out of the rooms. In addition, the high levels of heat can lead to increase of moisture in the houses. These two conditions cause conducive environment for biologic pollutants sites for breading and multiplications within the house. The biologic pollutants such as mites, molds, viruses, cockroaches and bacteria have got the affinity of causing diseases to the human health. When a member of the family contacts, the diseases caused by the biologic pollutants it will be spread to the other members through the air. The poor circulation of air can be prevented by proper ventilation in the houses to reduce the chances of giving best reproduction sites for the biologic pollutants. The cockroaches found in the cities toilets and other dirty places will move in the houses if not properly build or when the houses have cracks that allow them get into the houses. If by chance the cockroaches finds their way in the house they will get a better place to stay and bread in. The scientific research by the southern parts of the united states have indicated that the cockroaches’ droplets, saliva and body parts trigger asthma.so the best way to keep such insects is by thorough cleaning with disinfectants. Additionally, the pets kept in the houses can trigger the asthma that is when we are exposed to their urine, dead skin flakes and hairs it will cause our body to have antigen antibody reactions. This too can be prevented by keeping them away or simply washing the animals after a given period of time. Apart from the biologic pollutants there are also the chemical pollutants in the houses the use of carbon monoxide according to the United States department of National Fire Protection Agencies NFPA (Crain… et al 32) the none fire deaths are caused by house equipment’s such as the gas fueled heaters, charcoal grills and portable kerosene heaters. These have caused the deaths of children in different part of the world. It is from the understanding of the fluid mechanics that we understand the indoor pollution threats and can prevent them easily rather than waiting for the diseases or deaths to strike the human genre. Additionally, the molds in the houses can be removed and proper cleaning done to the house since the health risk is high for both the children and the adults. In the termite, can be controlled through spraying of eco-friendly pesticides.
The outdoor pollution is highest threat (Crain… et al 36) to the human health as compared to indoor pollution since the diseases related to it are more profound and hard to contain both preventatively or curing. The outdoor pollutants include the lead gases, the tobacco smokers in the environment and volatile organic compounds. When we inhale the ozone, there is high chance that one is going to suffer from the chest pains, coughs and other heart diseases. These sufferings can be prevented by knowing the areas safe to be in and what types of food to consume. Apparently, each day a number of people smoking by the road side are not only endangering their own health but also the people around. For instance, the side smokers are culprits of getting lung cancer and even causing ear infections to the children. Research in the US (Crain… et al 36) has proved without doubt that children suffer most from the environmental smokers than adults. There should be place set aside to be smoking zones. In the side of the lead we often use the water pipes, fishing materials, and inhale fumes from the automobiles such as cars and motor bikes accidently. The continuous use of lead materials has led to its deposition in water sources which flow into the lakes and oceans. past use of lead fertilizers Additionally, lead is used in the paints that we use daily in the walls and even vehicles coloring. Not to forget the materials such as putty used in fixing the windows contain the lead substances. However, the very dangers are irreversible and harmful. The effect of the lead can be affirmed has it is very resistance to many kinds of temperature and cold conditions and when it gets to the human system it can cause a lot of complications to both the digestive systems and breathing systems. Finally, the volatile organic compounds (VOC) are the products that can melt at normal temperatures either inside or outside the houses. The examples may include the pesticides used in the farms, the wax the cosmetics and varnishes. When they are carried by the moving air in form of moist particles and inhaled it will cause problems for example, xylenes and styrene from the VOC has been highly associated with birth problems (Crain… et al 41) on both male animals and human beings. To safeguard our health, the VOC can be used according to the prescribed directions on the covers and in the houses cosmetics should be applied in well ventilated rooms to prevent high concentration in the place. In a nut shell the fluid mechanism has both explanations on how fluids mechanism apply in the environment and daily lives. The knowledge can be used to adjust the short falls in our human activities. The know-how of the fluid mechanism is expected to extend with a lot of discoveries taking place in the world. In conclusion, there are a number of activities carried in our daily lives that are related to the fluid mechanic concepts but we never knew but now you know and can start enlightening others to make the world a better place.
Crain, Ellen F., et al. “Home and allergic characteristics of children with asthma in seven US urban communities and design of an environmental intervention: the Inner-City Asthma Study.” Environmental health perspectives 110.9 (2002): 9, 39-45.
Morgan, Wayne J., et al. “Results of a home-based environmental intervention among urban children with asthma.” New England Journal of Medicine 351.11 (2004): 1068-1080.
Yunus, A. Cengel, and John M. Cimbala. “Fluid mechanics: fundamentals and applications.” International Edition, McGraw Hill Publication (2006): 185-201.