Time flies.

In the blink of an eye, three days have passed.

Rongcheng, the world's top airport in the southwest region - Shuangliu Airport.

As the largest international top airport in southwest China, Shuangliu Airport has an average daily passenger throughput of more than 100,000 data, and is in the busiest state at all times.

Flights or planes belonging to different airlines are like endless streams, rising and falling, magnificent and majestic.

Dragging his suitcase, holding a ticket in his hand, and wearing a plain light blue shirt and shorts, Zhou Hai stood in the spectacular lobby of Terminal 2, his face was full of spirit, revealing a faint smile like a spring breeze.

The whole person was attentive and waited in line quietly for the ticket check.

Destination, capital!

In the past three days, Zhou Hai has lived a happy and beautiful life.

On the first day of getting the school bonus, Zhou Hai went to the vegetable market to buy a full 30 catties of beef, spent more than 900 yuan, and directly ate a nutritious and delicious super beef meal.

Subsequently, Zhou Hai's recipe not only added beef, pork, chicken and fish, but also vegetables and fruits containing various vitamins and nutrients to supplement the body's needs in an all-round way.

The days are comfortable and comfortable.

Yesterday, I filled in the college entrance examination volunteers, the early batch, the first choice Air Force Aviation University, the second choice Lianda Naval Ship Academy, and the remaining four volunteer columns were not filled.

Today, Zhou Hai's bank card received a bonus of 100,000 yuan from the Education Bureau of the old city.

There is money in the hand, and the waist is hard.

Zhou Hai did not hesitate to abandon the original plan to do a general-speed train, and with a wave of his hand, he bought an economy class ticket from China Southern Airlines from Chengdu to the capital, and spent 1,860 yuan in a dashing manner.

1860 yuan, equivalent to 60 catties of beef.

To be honest, after buying the air ticket, Zhou Hai's heart hurt a little.

Considering that this was his first time on a plane, the pain in Zhou Hai's heart disappeared.

Standing quietly at the back of the team, Zhou Hai, who was ready, was already looking forward to it slightly.

"Zhou Hai, you won't tell me in advance when you leave?" At this moment, a familiar voice suddenly came from behind him, and his words were crisp and resentful.

Hearing this, Zhou Hai turned around, smiled like a spring breeze, and looked at Zuo Xue, who was as slim as an orchid in front of him: "I said, I sent you a text message three hours ago, but I know you are very busy, so I didn't bother." ”

Light white dress, white women's shoes, a well-behaved Korean-style ball head, fluffy hair, slightly falling on the side of the face, and a round of light makeup on the delicate face, perfectly set off their beauty.

"Eh, this girl, so beautiful, this boy is blessed."

A middle-aged woman queuing up to check the ticket next to her looked at Zuo Xue in a light white dress, stunned for a moment, a little surprised.

"You know, I'll come over when I'm busy." A shallow smile appeared on Zuo Xue's face, and her eyes were clear and bright.

Zhou Hai shook his head with a smile, looked at Zuo Xue in front of him, and said softly: "Thank you, the time is coming, I should go." ”

The words fell, ready to turn around and check the ticket.

It's not early, and there are only a few minutes left until the last check-in time before the flight.

"Don't you hug before you say goodbye? I like to be a little more romantic. Just as Zhou Hai was about to turn around and leave, Zuo Xue stared at him and shouted softly.

Zhou Hai's figure froze, paused for a few seconds, turned around, and looked at Zuo Xue, who was smiling lightly.

"Well, let's be romantic." Taking a deep breath, Zhou Hai smiled slightly and walked over to Zuo Xue.

Zuo Xue smiled unabated, and the two gently opened their hands and embraced each other.

Hugs, warmth.

The romance before parting belongs to the romance between friends.

After hugging gently, Zuo Xue trembled in her heart, smiled a little forcefully, and waved goodbye: "Pay attention to safety, Zhou Hai." ”

"Goodbye, Zuo Xue, contact you later." Zhou Hai showed a sense of ease, waved his hand, and turned to the ticket gate.

Check in and board the plane.

Farewell, farewell.

For Zuo Xue, the huge terminal seems to be the only one left.

"May you be well."

Quietly looking at Zhou Hai's back as he walked away, Zuo Xue, who was standing in place, murmured softly.

Zhou Hai left the terminal quickly, walked along the gate into the airport, and boarded the booked flight.

The flight was an A330-300 medium- and long-range wide-body passenger aircraft with the number MU3578 of China Southern Airlines.

"Groan!"

Soon after, with the roar of two Pratt & Whitney PW4168 high bypass ratio aviation turbofan engines, the flight that had been approved to take off from the tower slowly taxied into the main runway of the airport under the control of two civil aviation pilots.

The high-performance wear-resistant tires roll at high speeds, making close contact with the airport's main runway, and the take-off speed of the entire flight continues to increase as the power output of the two aviation turbofan engines becomes higher and higher.

"Buzz!"

With the slight bump of the fuselage, the A330-300 medium and long-range wide-body passenger aircraft, dressed in red and white, jumped lightly like a noble and proud white swan, breaking away from the shackles of the main runway of the ground airport and pointing directly to the blue sky in the distance.

"Feeling, so-so."

Staying in the economy class, Zhou Hai, who was sitting by the window, was slightly disappointed after experiencing the whole process of the take-off of the civil airliner.

Slow, steady, slightly bumpy, completely devoid of the sensation I imagined.

If the engine can run at full capacity and output power, the passenger plane can take off at high speed, and then climb at a large elevation angle, or even flip and fly upside down, the ticket price will definitely be worth it.

Of course, Zhou Hai knew that his crazy idea would not be realized.

If such a situation does happen, and there is no cover for aircraft failures and other reasons, the captain and co-pilot are estimated to be drowned out by passenger complaints and saliva, and the layoff and revocation of the pilot's license are the lightest punishments.

Zhou Hai threw away some crazy thoughts in his mind and looked around, one passenger was either chatting or sleeping, and several were pale and seemed to be vomiting, and next to him were three young people resting with their eyes closed, a man and a woman.

After looking at it casually, Zhou Hai retracted his gaze, took out the books he was carrying, and read them silently.

"Fundamentals of Computational Aerodynamics Parallel Programming", which is one of the advanced books in the field of aerodynamics, the main aspects of this book are to start from the basic assumptions, deduce in detail the form and solution process of computational aerodynamics, which are suitable for programming in the curvilinear coordinate system.

A brief summary, as the name suggests, is an in-depth and detailed calculation of aerodynamics that is mathematically carried out and programmatically derived.

The book was written by Liu Wei, a senior professor of aerodynamics, and published by the National Defense Industry Press.

The whole book is full of dazzling formulas and verification processes, complex and cumbersome, but only on the surface, without going deep into the core, and many important things are missing.