Hello. Welcome to the MOOC on Sports and Building Aerodynamics. This is the introductory module. Briefly an introduction about myself, I was born in Belgium 1974. Briefly an introduction about myself, I was born in Belgium 1974. I studied at Leuven University also did my PhD there. And I got this degree in 2004 in civil engineering, building physics and services. My expertise is urban physics and environmental wind engineering. And since 2006, I'm affiliated at Eindhoven University of Technology at the Department of the Built Environment and the unit Building Physics and Services. the Department of the Built Environment and the unit Building Physics and Services. And one of my hobbies is sports and that's one of the reasons why the sports academics is also included in this MOOC. Briefly something about Eindhoven and the Netherlands. Well the Netherlands is this rather small country at the heart of Europe and many of you might know it from windmills and tulips but the country of course has much more to offer than that. It has about 17 million inhabitants. The official language is Dutch. And something very remarkable is that Everybody speaks English. But there's many more positive things to say about the Netherlands and about Dutch people. And I can do that without bragging, because I'm not Dutch. I'm Belgian. So I can say that Dutch people are multicultural, open-minded, down-to-earth and tolerant. The country has excellent public transportation systems, and also excellent connections to other countries. So if we zoom on the Netherlands, there, you see Eindhoven in the southeast. And Eindhoven, it's metropolitan area has about 750,000 inhabitants, and this makes it the 5th largest city in the Netherlands. It's also a typical university city. It has long been the main location of the Phillips company. It's also home to the PSV Football Club and it's also called the City of Light. Eindhoven has very rich cultural life, parks, a lot of green and open space, and a vibrant night-life. And then last but certainly not least, it has an airport. And this is the second busiest airport in the Netherlands after Schiphol. So this is a very convenient feature that is appreciated by our international collaborators. Something briefly about the university. Eindhoven University focuses on engineering science and technology and has a very close collaboration with industry. It is young, dynamic, ambitious, and relatively small. And the latter is not a disadvantage, because it means you have a high staff to student ratio so excellent support. There's also a lot of good research and education facilities and administrative support at the university. There's nine departments, the Department of the Built Environment is one of them. And these are some key figures, so we have now about 8,000 students. Then in addition, 1,200 PhD students more or less, half of which are international students. And as you can see that the staff to the student ratio is quite high, we have about 5,200 staff. There's some positions that the university is quite proud of. We end in almost every consecutive year in the top ten of scientific output in collaboration with industry. The university also has high citation impact score and according to several organizations, the university is the best university in the Netherlands or the best technical university in the Netherlands. Let's have a look at the campus. The campus is large. It's modern, attractive, and green. There's on campus student housing. There's restaurants. There's a public bar. The campus is actually very closely situated to the city center at ten minutes walking and only eight minutes walking to Eindhoven railway station. So let's briefly have a look at this MOOC. This is actually the first MOOC of Eindhoven University of Technology. And there is a reason why we chose to combine building aerodynamics and sports aerodynamics although this might seem as a strange combination at first. First of all, building aerodynamics which is part of building physics is one of the core expertise areas of the university. And apart from that, sports aerodynamics and building aerodynamics have many things in common. They are both subsonic flow at similar length and velocity scales. Their assessment techniques are the same, so wind-tunnel testing and computational fluid dynamics. There are similar misconceptions in both fields, and the knowledge from one field can actually benefit the other field. What we will also do in this MOOC is announce a few press releases that are focused on the new research achievements in these two areas. So the MOOC has six weeks, and each week consists of a series of small modules, video lectures. In the first week, we'll focus on basic aspects of fluid flow. This is a rather tough week, but it provides the basic background that you need to fully benefit from the other weeks. Then in the second week, we'll focus on wind tunnel testing, as one of the major assessment techniques in sports and building aerodynamics. In the third week, we'll focus on computational fluid dynamics, we will explain what CFD is about, and we'll also give you tips and tricks to perform accurate and reliable CFD simulations yourself. After these three weeks of theory, it's time for three weeks of applications. So we will apply the acquired knowledge, in the fourth week on building aerodynamics. In the fifth week, on 100 meter sprint aerodynamics, and in the sixth week, on cycling aerodynamics. So that's it for now, that was the introductory module. We very much hope that you will enjoy this MOOC and we look forward to welcoming you in the following weeks. Thank you very much